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68k Accelerators, FPUs and other CPUs

Last updated on April 14, 2025

Over the years I have been lucky enough to pick up some 68k systems that that had accelerators installed: two MacPlus machines with 68030 accelerators (unlabeled, possibly Novy Quik30), a SE FDHD with a Mobius 030 SE accelerator, and a collection of NewLife Accelerators. As I dug around the internet looking for information I have found a lot of of advertisements, reviews, and some manuals and drivers for various accelerators, I also found some contact names that I used to track down old employees through LinkedIn (with some success), so I decided to create this post to track what companies I’ve found information about.

Background

The first mention I found of an accelerator was an advertisement in MacWorld January 1986 for the Human Touch Computer Products Corp’s Three to One Touch Board that adds a new 68000 CPU running at 12MHz and up to 3.5MB of RAM., the next was an advertisement in MacWorld March 1986 for General Computer Company’s (GCC) HyperDrive 2000, that adds 1.5MB of RAM, a 20MB hard drive, a new 68000 CPU running at 12MHz, and a 68881 FPU, after that additional accelerators for 68k systems appeared in MacWorld August 1986 with reviews of products by Novy, Quesse and LevCO, if you are aware of any earlier products please let me know.

I created the following lists to summarize and link to the information I’ve found about different accelerators. I am in the process of adding images (when I can find them) to help myself, and others, identify unbranded accelerators (like the 2 I have for my MacPlus). I decided to group the information by the CPU on the accelerator, with subgroups for the supported systems. You may notice several accelerators with different names that look identical, this is often because the design layout was either determined by how the accelerator could “fit” in the system (the NewLife accelerator for the Classic is a good example), or the accelerator was sold under different names as a result of licensing agreements (e.g. from Novy and Quesse to Total System Integrations) or due to the sale of one company to another (e.g. MicroMac’s purchase of the rights to several DiiMO, Dove, Harris, and Mobius accelerators in the 90s).

Issues with 680×0 accelerators running System 7.5.x or newer

When Apple introduced System 7.5.x it changed how Memory Management worked, this change was incompatible with many of the accelerators, limiting the majority of accelerators to running system 7.1.x or 6.0.x with only a few venders making the effort to provide support 7.5.x, that change combined with Apples move to the PPC CPU’s killed the 680×0 accelerator market.

We’re sorry, but DayStar discontinued manufacturing 030/040/601 upgrades effective Fall of 1996. Effective September 1, 1997 DayStar is no longer able to offer any warranty or tech support for the 030/040/601 upgrades due to limited availability of parts and qualified 030/040/601 support staff.

DayStar 030/040/601 upgrades are only certified through System 7.5.1. While you may have limited success running with later System Software, we cannot support your upgrade. The later Systems have introduced problems which disable upgrade compatibility in many cases. Apple has also changed its policy of 100% downgradable compatibility. This decision and the resulting incompatibilities are the primary reasons DayStar discontinued the 030/040/601 upgrade product lines.

From the DayStar Website, January 1998, Internet Archive

68000 / 68HC000 Accelerators

These were early accelerators that either either 68000 CPUs running at a higher clock speed, or the newer 68HC000 that required less power. For the 128k, 512k, 512ke and Plus they either clipped on top of the CPU (e.g. a Killy Clip) or replaced the existing 68000 CPU.

Sources: BYTE, Computer World (CW), InfoWorld (IW), MacWeek (WK), MacWorld (MW), MacUser (MU), The Macintosh Buyers Guide (MG), MicroTimes (MT)

Note: Accelerators that support the 512Ke and Plus, can often be used with the 128K and 512K if the Apple 800K internal disk drive kit and it’s included 128K ROM upgrade has been installed.

Aox DoubleTime-16 SE (16MHz, 4k cache)

by Aox Inc / Aox Software, 486 Totten Pond Rd. Waltham. MA 02154 (source Byte 1992.02);

The Doubletime-16 contains a Motorola 68000 clocked at 16 MHz, double that of the Macintosh SE’s native 68000, paired with a 68881 FPU. Doubletime-16’s processor can be switched on and off in software. (need a copy of the software)

Brainstorm Mac Accelerator (Plus, SE, 16MHz)
Brainstorm Accelerator

Brainstorm Mac Accelerator Plus, SE (16MHz)

by Brainstorm Products, Mountain View, CA (MU 1993.04 page 130)

Description: Two chips: 16MHz 68000 and a ASIC chip to replace the Apple timing chip.

“The Brainstorm Accelerator triples the speed of graphics operations and increases SCSI hard drive transfer rates by as much as a factor of five. Computationally intensive processor tasks, such as re-calculating a complicated spreadsheet, are accelerated by a minimum factor of 250%.” From a product announcement I found on comp.sys.mac.hardware

GCC Hyperdrive 2000 (128k, 512k, 512KE, Plus)
source

GCC Hyperdrive 2000, 128k, 512k, 512KE, Plus (12MHz, 2MB, opt FPU)

By General Computer Company, 215 First St. Cambridge, MA 02142 (source The Amiga 1985.08), 580 Winter Str. Waltham, MA 02154 (source MW 1990.02)

No MMU, Optional 68881 FPU, adds internal 20MB hard drive

“in 1984, anticipating dramatic changes in the electronics market, GCC began designing products for the newly-introduced Apple Macintosh computer. GCC’s most critical success was the HyperDrive, the first internal hard disk drive for the Macintosh” (source GCC website)

Harris Performer (Classic, 16MHz, FPU, 64k cache)
source

Harris Performer Classic (16MHz, FPU, 64k cache)

by Harris Laboratories (later Harris International), Inc Burnsville, MN (Byte 1992.02)

Harris Performer 2 (SE, 16MHz, FPU)
source

Harris Performer 2 SE (16MHz, FPU)

by Harris Laboratories (later Harris International), Inc Burnsville, MN (Byte 1992.02)

PDS slot, Extended Video

HTCP Corp. Three to One Touch Board (128k, 512k, 12.5 MHz, 1.5MB)
source

HTCP Corp. Three to One Touch Board (128k, 512k, 12.5 MHz, 1.5MB)

by Human Touch Computer Products Corp, Cherry Hill, N.J. (Chief Engineer: Dave Wolff)

An additional 384K of ROM space?

source

Irwin Excelerator XL: SE (16MHz, 32k cache)

Sold by Irwin Products Group 2010 Commonwealth Blvd. Ann Arbor, MI 48105 (source MW 1990.02), designed by MacPEAK systems. Irwin was acquired by Cipher Data Products in 1989, Cipher was acquired by Archive Corporation in 1990.

These are rebranded MackPEAK Orion One boards (see below). In 1988 MacPEAK Systems granted retail distribution rights for its accelerator board line to Irwin Magnetics Inc..[Irwin will be] offering the 16, 20, and 25MHz Mac SE boards under its Excelerator brand name” – WK 1989.04 V.03.N15.p65

Levco MonsterMac (128K, 512K, 10MHz)
source

Levco MonsterMac 128K, 512K (10MHz)

by Levco, San Diego CA. Levco was purchased by SuperMac’s parent SMS (MU 1987-11)Levco and supermac merge (Apple2000 Vol 2 No 5 October 1987) 

Includes Fan, 256K PROM, SCSI, requires modification to case/board.

MacMemory TurboMax (128K, 512K, 10MHz, 4MB)
source

MacMemory TurboMax 128K, 512K (10MHz, 4MB)

by MacMemory, San Jose CA

No MMU, SCSI port. Includes fan and power supply.

Connector for the Big Picture monitor from E-machines

Difficult installation, requires remounting internal disk drive as well as soldering wires

MacMemory Turbo SE (SE, 16MHz, 4MB, FPU)
source

MacMemory Turbo SE (16MHz, 4MB, FPU)

by MacMemory, San Jose CA

No MMU, Connector for the Big Picture monitor from E-machines

MacPEAK Orion One (Plus, SE, 16MHz, 4KB, FPU)
source

MacPEAK Orion One: Plus, SE (16MHz, 4KB, FPU)

by MacPEAK Systems, Texas

These were be rebranded as Irwin Magnetics Excelerator XL SE (see above). In 1988 MacPEAK Systems granted retail distribution rights for its accelerator board line to Irwin Magnetics Inc..[Irwin will be] offering the 16, 20, and 25MHz Mac SE boards under its Excelerator brand name” – WK 1989.04 V.03.N15.p65

Mobius Speedscreen SE (16MHz, opt FPU)

by Mobius Technologies Inc., Emeryville CA

NewLife 1 / UltraMax (128K, 512K, 512ke, 68HC, 4MB)
photo by me

NewLife 1 / UltraMax 128K, 512K, 512ke (68HC, 4MB)

by NewLife Computer Corporation, Ottawa ON (president: Lincoln Henthorn)

68HC000 CPU, Clip on, SCSI Port

I have written a detailed post about the NewLife accelerators including manuals, marketing material and drivers.

NewLife 2 128K, 512K, 512ke (68HC, 4MB)
photo by me

NewLife 2 128K, 512K, 512ke (68HC, 4MB)

by NewLife Computer Corporation, Ottawa, ON (president: Lincoln Henthorn)

68HC000 CPU, Clip on, SCSI Port, and Video

I have written a detailed post about the NewLife accelerators including manuals, marketing material and drivers.

Aox DoubleTime-16 (SE, 16MHz, 4k cache)
source

Newer MacSelerator SE (16MHz, opt FPU, 8KB cache)

by Newer Technologies, Wichita Kansas, designed by AOX

This is a rebranded AOX doubletime board (MU 1998.08). The MacSelerator board supports large screen Big Picture monitors from EMachines

source

RasterOps ClearVue SE (16, opt FPU, 4MB)

by RasterOps Corp. Santa Clara CA

Mac RAM and ROM must be moved to accelerator. Includes video interface for two-page monitor or Apple Portrait Display

  • Reviews: MU 1990.04 (page 184), MU 1990.08 (photo, specs)
source

Ryad MacEngine GT 128K, 512K, Plus (16MHz, FPU, 128k cache, 4MB)

by Ryad, Santa Ana CA (source MW 1990.02)

No MMU, Includes fan and power supply, and SCSI port

Optional CMOS Static RAM in place of standard 100ns DRAM for 30% speed boost

SiClone Turbo SE, and 512KE, Plus (16MHz, 4MB)
source

SiClone Turbo SE, and 512KE, Plus (16MHz, 4MB)

by SiClone Sales & Engineering Corp, Sunnyvale CA (MW 1989.03 pg.258)

The company purchased by Applied Engineering in Fall of 1991 (MW 1991.08)

Can work on the 512Ke and Plus with an adapter, optional SCSI port for the 512KE

SuperMac SpeedCard SE (16MHz, opt FPU, 16K cache)

by SuperMac Technology, Montain View CA, designed by Levco Design Group (see photo). Levco was purchased by SuperMac’s parent SMS (MU 1987-11)Levco and supermac merge (Apple2000 Vol 2 No 5 October 1987) 

“Great low-cost alternative Requires no additional memory. Allows fall use of memory on the motherboard and full compatibility with all programs that don’t work with the 68020 , Allows use of many different large-screen displays (except Radius). You can use either the Apple PC drive card or the EtherTalk card for the SE, the Colorvue SE (by Orchid Technology) will also function on this card.” MU.1989.02

68020 Accelerators

Sources: BYTE, Computer World (CW), InfoWorld (IW), MacWeek (WK), MacWorld (MW), MacUser (MU), The Macintosh Buyers Guide (MG), MicroTimes (MT)

Note: Accelerators that support the 512Ke and Plus, can often be used with the 128K and 512K if the Apple 800K internal disk drive kit and it’s included 128K ROM upgrade has been installed.

Missing boot disk
Need photo

Computer Systems Associates (CSA) FasTrack Plus, SE (8MHz, 25MHz FPU)

by Computer Systems Associates Inc. San Diego CA

The 68020 CPU runs at 8MHz, but the FPU runs at 25MHz, originally developed for the military, later released to the civilian market targeting CAD users (WK 1988.10 V02.N43.p14)

DayStar Mac 20-MX-25 512Ke, Plus, SE (16/20/25MHz, opt FPU, 4MB)
source

DayStar Mac 20-MX-25 512Ke, Plus, SE (16/20/25MHz, opt FPU, 4MB)

by DayStar Digital Inc, Flowery Branch Georgia, designed by NOVY Systems.

source

Dove FastNet LAN 020 (FL2) SE (16MHz, opt FPU, 4MB)

by Dove Computer Corporation, Wilmington NC (Byte 1992.02)

Multifunction board combining an 020 accelerator and an Ethernet adapter

Missing boot disk
Need photo

Dove MacSnap 020 512Ke, Plus, SE (16MHz, opt FPU, 4MB)

by Dove Computer Corporation, Wilmington NC (Byte 1992.02)

Dove Mach II SE / Dove Marathon 020 SE (16MHz, FPU, 1MB)
source

Dove Mach II SE / Dove Marathon 020 SE (16MHz, FPU, 1MB)

by Dove Computer Corporation, Wilmington NC (Byte 1992.02)

The Mach II SE was renamed the Marathon 020 when the MaraThon 030 was released (source WK 1988.10 V02.N38.p4)

GCC HyperCharger 020 SE (12/16MHz, opt FPU, 4MB)
source

GCC HyperCharger 020 SE (12/16MHz, opt FPU, 4MB)

by General Computer Company (GCC), 215 First St. Cambridge, MA 02142 (source The Amiga 1985.08)

Drivers —-
No MMU, Connector for the Big Picture monitor from E-machines

Irwin Magnetics Excelerator XL20/XL25 SE (20/25MHz, FPU, 8MB)
source

Irwin Magnetics Excelerator XL20/XL25 SE (20/25MHz, FPU, 8MB)

by Irwin Products Group, Ann Arbor MI (MW 1990.02)

These were called MackPEAK Orion 25 (see below). In 1988 MacPEAK Systems granted retail distribution rights for its accelerator board line to Irwin Magnetics Inc..[Irwin will be] offering the 16,20, and 25MHz Mac SE boards under its Excelerator brand name” – WK 1989.04 V.03.N15.p65

Levco Prodigy 4 128k, 512k, 512KE, Plus (16MHz, opt FPU, 4MB)
source

Levco Prodigy 4 128k, 512k, 512KE, Plus (16MHz, opt FPU, 4MB)

by Levco, San Diego CA. Levco was purchased by SuperMac’s parent SMS (MU 1987-11)Levco and supermac merge (Apple2000 Vol 2 No 5 October 1987) 

No MMU, Optional 68881 FPU, SCSI port can be used internally to attach to Levco’s OverDriver internal hard disk or to an external SCSI hard disk through a 25-pin connector that mounts in the Mac’s battery compartment, connector for MegaScreen Plus from Micrographics Images, RAM disk. Includes fan and power supply.

Missing boot disk
Need photo

Levco Prodigy Prime 128k, 512k, 512KE, Plus (16MHz, opt FPU, 32MB)

by Levco, San Diego CA. Levco was purchased by SuperMac’s parent SMS (MU 1987-11)Levco and supermac merge (Apple2000 Vol 2 No 5 October 1987) 

Described as a lower cost version of the original Prodigy 4 Optional MMU (source BYTE 1987.05),
According to the review the review (BYTE 1987.05) accelerator may support up to 32MB if the 68851 Paged Memory Management Unit (PMMU) is installed.

Sold with a fan and a new powersupply

Levco Prodigy SE (16MHz, opt FPU, 32MB)
source

Levco Prodigy SE (16MHz, opt FPU, 32MB)

by Levco, San Diego CA. Levco was purchased by SuperMac’s parent SMS (MU 1987-11)Levco and supermac merge (Apple2000 Vol 2 No 5 October 1987), and this card was rebranded the SuperMac Prodigy SE (see below)

Optional MMU, Connector for MegaScreen II from Micrographics Images
According to the review (MW 1987.09) the accelerator may support up to 32MB if the 68851 Paged Memory Management Unit (PMMU) is installed. There was an issue with a shorting pin on early releases that was later corrected (WK 1987.10.V01.22)

Levco later merged with SuperMac.

MacPeak Systems Orion, SE (16/25MHz, FPU, 32MB)
source

MacPeak Systems Orion 25: SE (16/25MHz, FPU, 32MB)

by MacPEAK Systems, Texas

These were be rebranded as Irwin Magnetics Excelerator XL (see above). In 1988 MacPEAK Systems granted retail distribution rights for its accelerator board line to Irwin Magnetics Inc..[Irwin will be] offering the 16 ,20, and 25MHz Mac SE boards under its Excelerator brand name” – WK 1989.04 V.03.N15.p65

Optional MMU, Galaxy Adapter option. According to the reviews the accelerator may support up to 32MB if the 68851 Paged Memory Management Unit (PMMU) is installed.

source

MacProducts Railgun 020: 128, 512, Plus, SE (16/25MHz)

by MacProducts (USA), Inc, Austin TX (Byte 1992.02), became DGR Technologies Inc. in 1994 (drg.com)

This appears to be a re-branded version of the Novy Max20Mx (see below).

No MMU, CPU can be upgraded to a 68030

There is also a File Server version of this accelerator that allows the original processor and RAM to be used as an AppleTalk and SCSI cache. (see: WK 1989.04.V03.17)

Microtech 68020 (FasTrack?): Plus, SE (8/12MHz, 33MHz FPU)

by Microtech International Inc. / MassTech International, Inc, East Haven CT  (source MW 1990.02Byte 1992.02).

May be a rebranded Computer Systems Associates (CSA) FasTrack.

Clips on the processor of both systems, a 68881 or 68882 FPU at speeds up to 33 MHz, the CPU is running at 12MHz. Apple Engineering Scientific Solutions Guide Winter 1989

source

Nemonix NXMACE-VXL-SE SE, Plus (16MHz)

by Nemonix Inc. Hopkinton Mass

A combination accelerator and video interface.

source

Network Specialties Jump 020 512KE, Plus (12/16/24MHz, opt FPU, 4MB)

No MMU, can connect to StretchScreen and StretchProjector

source

Novy Systems Mac20 512Ke, Plus, SE (8Mhz, FPU)

by Novy Systems,  Edgewater FL (source MW 1990.02)

Bolle from 68kmla, Plus version
source, SE version

Novy Mac20Mx 512Ke, Plus, SE (12/16/20/24, opt FPU, 4MB)

by Novy Systems,  Edgewater FL (source MW 1990.02)

Licensed to Total Systems Integration (TSI) Gemini 020 and MacProducts as the MacProducts RailGun 020

“Novy Systems recommends soldering its clip-on accelerator to the microprocessor because it prevents oxidation of the 68000 pins. If the clip is not soldered to the 68000, it may require frequent cleaning to provide reliable operation” MW 1988.02

No MMU, Includes fan and power supply, SCSI port is optional

source

Orchid Mac Sprint II Mac II (16MHz, 32K cache)

by Orchid Technology, Fremont CA (source MU 1990.08)

68kmla

Quesse: SE (16MHz, 32K cache)

by Quesse Computer Company, Issaquah, WA (MU 1986.10)

Bolle from 68kmla

Radius Accelerator SE (16, opt FPU, 32K cache)

Radius.com: Q&A and drivers
No MMU, Full Page Display

source

Radius Accelerator 25 SE (25MHz)

Radius.com: Q&A and drivers, brochure

Missing boot disk
Need photo

Ryad MacEngine Turbo 128K, 512K, 512KE, Plus (16MHz, opt FPU, 128k cache, 4MB)

by Ryad. Grand Ave, Santa Ana CA (source MU 1987.04)

No MMU, Includes fan and power supply, and SCSI port

“You have a choice of either the Motorola 16MHz 68000 (GT Series), or the even faster 16MHz 68020 (Turbo Series)”

source

SparkGAC20 SE (16MHz, 4MB)

by Spark International Incorporated, Glenview Ill

A combination accelerator and video interface for large-screen monochrome monitors

I wasn’t able to find much information about this accelerator, there are lots of adds about the companies video cards, but very little about this accelerator.

Missing boot disk
Need photo

Spectra MacAccelerator 128K, 512K, 512KE, Plus (12MHz, FPU)

by Spectra Micro Development, Tucson AZ (from MW 1990.02)

No MMU, Connector for the Big Picture monitor from E-machines

Missing boot disk
Need photo

Spectra Pro-Board (ProBoard) 512KE, Plus, SE (16MHz, ?MB)

by Spectra Micro Development, Tucson AZ (from MW 1990.02)

Finding mixed info on this board’s memory expansion capabilities. The Apple Engineering Guide says that it does, but the table in MW 1990.02 page 129 says it does not.

Not sure if the SCSI port was optional, or included in all versions (high-speed SCSI)

“Pro-Board is a plug-in enhancement that combines acceleration, memory expansion, and high-performance large-screen display in one easily installed expansion card. The Pro-Board transforms a Macintosh 512K enhanced or Macintosh Plus computer into a workstation with the speed and power of a Macintosh II system, while retaining the portability of the original machine. The Pro-Board even includes a SCSI port. The Pro-Board SE offers the same performance enhancements for the Macintosh SE computer” (Apple Engineering Scientific Solutions Guide Winter 1989)

SuperAdd Procard 128K, 512K, Plus, SE (16Mhz, opt FPU, 4MB)
source

SuperAdd Procard 128K, 512K, Plus, SE (16Mhz, opt FPU, 4MB)

by SuperADD Computer Products Inc, Toronto, Canada (President: John Bridgman)

A combination accelerator and video interface for large-screen monochrome monitors

source

SuperMac Technology Prodigy SE (16MHz, FPU, 8MB)

Rebranded Levco Prodigy SE, released by SuperMac after Levco was purchased by SuperMac’s parent SMS (MU 1987-11)Levco and supermac merge (Apple2000 Vol 2 No 5 October 1987) 

“Levco Inc., a developer of Macintosh enhancement products, has been acquired by Scientific Micro Systems, and will merge its product line with their SuperMac Technology division.” Apple 2000 1987.10.V2.5

Total Systems Integration (TSI) Gemini 020 512Ke, Plus (12/16/20/24MHz, opt FPU, 4MB)
source

Total Systems Integration (TSI) Gemini 020: 512Ke, Plus (12/16/20/24MHz, opt FPU, 4MB)

Manufactured for Total Systems Integration of Eugene Oregon, by Novy Systems Inc. (see Novy Max20MX above Byte 1987.12).

TSI 020 can hold up to 4 megabytes of 1MB CMOS/SIMM memory chips. No MMU, Includes fan and power supply. Expansion port for E-Machines monitor and fast SCSI

Total Systems Integration (TSI) Gemini 020 SE (12/16/20/24MHz, opt FPU, 4MB)
source

Total Systems Integration (TSI) Gemini 020: SE (12/16/20/24MHz, opt FPU, 4MB)

Manufactured for Total Systems Integration of Eugene Oregon, by Novy Systems Inc. (see Novy 20MX SE above Byte 1987.12).

No MMU. Expansion port for E-Machines monitor and fast SCSI

68030 Accelerators

Sources: BYTE, Computer World (CW), InfoWorld (IW), MacWeek (WK), MacWorld (MW), MacUser (MU), The Macintosh Buyers Guide (MG), MicroTimes (MT)

Note: Accelerators that support the 512Ke and Plus, can often be used with the 128K and 512K if the Apple 800K internal disk drive kit and it’s included 128K ROM upgrade has been installed.

source

AE TransWarp Cache-In 50 IIci (50MHz, fpu, 64k cache)

Sold by Applied Engineering, P.O. Box 5100 Carrolton, TX 75011 (source Byte 1992.02), founder Dan Potefan site. Possibly a rebranded Siclone Intensifier ci, AE purchased Siclone in Fall of 1991  (MW 1991.08)

ebay auction

AE TransWarp: LC, LC II, Performa 400 and CC (33/40/50MHz, opt FPU, 32k cache)

by Applied Engineering, P.O. Box 5100 Carrolton, TX 75011 (source Byte 1992.02), founder Dan Potefan site

Includes a control panel that can disable the card’s static-RAM cache and control the ’030’s built-in data and instruction caches (MW V07 N12).

source

AE TransWarp: SE (16/25/40MHz, opt FPU, 32K cache, 16MB)

by Applied Engineering, P.O. Box 5100 Carrolton, TX 75011 (source Byte 1992.02), founder Dan Potefan site

Optional Extended Video

25MHz no memory lobust at 68kMLA
Missing boot disk
40MHz need photo

AE TransWarp 1325: SE (25, 40MHz, opt FPU, opt 128K cache, option 16MB)

by Applied Engineering, Beltline Dallas, TX 75011 (source AE Fall/Winter 1993 product guide)

Optional Monochrome video (VideoX) and ethernet options

The 40MHz version supports up to 16MB of ram, and an optional 128K cache.

25MHz no memory brochure
Missing boot disk
40MHz need photo

AE TransWarp 2300: Classic (25, 40MHz, opt FPU, opt 128K cache, option 16MB)

by Applied Engineering, Beltline Dallas, TX 75011 (source AE Fall/Winter 1993 product guide)

Optional Monochrome video (VideoX) and ethernet options

The 40MHz version supports up to 16MB of ram, and an optional 128K cache.

bouchure

AE TransWarp 4300: LC (33, 40MHz, opt FPU, 128K cache)

by Applied Engineering, Beltline Dallas, TX 75011 (source AE Fall/Winter 1993 product guide)

Optional Monochrome video (VideoX) or color (Video 4000R) and ethernet options

The 33MHz version supports virtual memory, not sure why the 40MHz version does not..

Missing boot disk
Need photo

Computer Systems Associates (CSA) Over 030 Mac II (25MHz)

68kmla uniserver

DayStar Digital Accelerator II (33MHz, 32K cache)

by Daystar Digital, Atlanta Highway, Flowery Beach, GA

“connects to the motherboard of the Mac II and uses the original 68020 socket rather than an add-in slot, according to Andrew Lewis, president of Daystar Digital. When installed as a Nubus card, the accelerator is hampered by the 10-MHz speed of the slot, he said.” (IW 1988.10)

Includes DayStar’s Extended CPU Interface (XCI), allows addon boards to run at 16-MHz instead of 10-MHz (MK 1989.02.07 V03 N06)

MW 1992.06

DayStar Digital Equalizer: LC (16MHz, opt FPU)

by Daystar Digital, Atlanta Highway, Flowery Beach, GA

“This 16MHz 68030-based processor (the LC comes stock with a 68020) gives you enough power to run Apple’s System 7 virtual memory. The math chip is great for recalcs and math/science programs. PowerMath software adds even more of a boost to many other math function.” (MW 1992.06)

DayStar Digital PowerCard: II, IIx, Ilcx (25/33/40/50MHz, opt FPU, 32K cache)

by Daystar Digital, Atlanta Highway, Flowery Beach, GA

Daystar.com The 1990 pricelist shows two versions of this accelerator, both are different from the photo I found in the review.

Includes DayStar’s Extended CPU Interface (XCI), allows addon boards to run at 16-MHz instead of 10-MHz (MK 1989.02.07 V03 N06)

source

DayStar Digital Universal PowerCache (33/40/50MHz, opt FPU, 32K cache)

by Daystar Digital, Atlanta Highway, Flowery Beach, GA

Daystar.com, Driver, manual

PDS slot, Adapter required for SE/30, II, IIx, IIcx*, IIsi, Performa 400, 405, 410, 430, 450, LC, LC II, LC III, LC 520 and Color Classic. None needed for IIci, IIvx, IIvi and Performa 600

micromac.com

DiiMO Cache: II, IIx, IIcx, IIci, IIsi, IIvx, IIvi, LC, LCII, LCIII, Performa 400, Performa 600, SE/30 (50MHz, opt FPU, 64K cache)

by DiiMO Technologies Inc (formally Teknovation Inc). 2540 Brockton Drive, Suite 110, Austin, Texas 78758 (source MK V07 N22)

The card was originally developed by Logica Reasearch Inc as the LogiCache (MK V07 N22) and was later sold by MicroMac as the MicroMac DiiMMO 030.

“MicroMac Technology has incorporated accelerators originally developed by such firms as DiiMO, Dove, Harris, and Mobius into its product line.” MU 1997.07

Website: micromac.comdrivers

Dove Marathon Racer 030 Plus, SE, Classic (16MHz, opt FPU)

by Dove Computer Corporation, 1200 North 23rd St. Wilmington, NC 28405 (source Byte 1992.02)

Rebranded the MicroMac Performer when Dove stopped making accelerators.

“MicroMac Technology has incorporated accelerators originally developed by such firms as DiiMO, Dove, Harris, and Mobius into its product line.” MU 1997.07

Clip on, Optional Extended Video

Dove 030 Mac II (32MHz, opt FPU)

by Dove Computer Corporation, 1200 North 23rd St. Wilmington, NC 28405 (source Byte 1992.02)

Re-engineered and rebranded the MicroMac Marathon Mac II when Dove stopped making accelerators.

“MicroMac Technology has incorporated accelerators originally developed by such firms as DiiMO, Dove, Harris, and Mobius into its product line.” MU 1997.07

Based on the advertisement, there seems to be 2 version of this accelerator. I believe the 2nd version has a PMMU so that the Mac II could support virtual memory.

Missing boot disk
Need photo

Extreme Systems Extender

Also sold as MacProducts USA Magic (MW 1993.06)

  • PDS slot. Upgrades your LC with a 33MHz 030 processor, allows use of Virtual Memory. Optional Math co-processor.
  • Review: MW 1993.06
  • Ad: MU 1993.04
Bolle from 68kmla

Extreme Systems Vandal SE (33/50MHz, fpu)

Also sold by Total Systems as the Gemini Integra (MW 1993.06)

Driver, manual
IIfx speed for your SE. FPU, memory slots and video standard. Supports many Dual and Full page monitors.

MU 1993.04

Extreme Systems Impact LC, LC II (33, opt FPU)

Driver
PDS slot. Upgrades your LC/LC II with a 33MHz 030 processor, allows use of Virtual Memory. Optional Math co-processor.

Bolle from 68kmla

Formac Pro33 LC, LC II (33, opt FPU)

Website, drivers (photos)

Missing boot disk
Need photo

Formac Pro50 LCIII (50, FPU, 32K cache)

Website, drivers

source

Harris PerformerPro SE, Classic (25MHz, opt FPU, 64K cache)

by Harris Laboratories (later Harris International), Inc Burnsville, MN (Byte 1992.02)

Rebranded the MicroMac Performer Pro: Plus, SE, Classic when Harris stopped making accelerators.

“MicroMac Technology has incorporated accelerators originally developed by such firms as DiiMO, Dove, Harris, and Mobius into its product line.” MU 1997.07

source

Harris PerformerPro LC, LC II (32MHz, opt FPU)

by Harris Laboratories (later Harris International), Inc Burnsville, MN (Byte 1992.02)

Rebranded the MicroMac Thunder: LC, LC II when Harris stopped making accelerators.

“MicroMac Technology has incorporated accelerators originally developed by such firms as DiiMO, Dove, Harris, and Mobius into its product line.” MU 1997.07

micromac.com

Logica LogiCache 50MHz for II, IIx, IIcx, IIci, IIsi, IIvx, IIvi, LC, LCII, LCIII, Performa 400, Performa 600, SE/30

by Logica Research 8760 Research Blvd, Austin TX

The company was sold to DiiMO Technologies Inc. (MK V07 N22) and the Macintosh II version of the card was rebranded as the DiiMO cache II and then was later sold by MicroMac as the MicroMac Dimmo 030.

“MicroMac Technology has incorporated accelerators originally developed by such firms as DiiMO, Dove, Harris, and Mobius into its product line.” MU 1997.07

source

MacPeak The Orion II, Mac II (25MHz, opt FPU)

by MacPEAK Systems, Texas

In 1988 MacPEAK Systems granted retail distribution rights for its accelerator board line to Irwin Magnetics Inc..[Irwin will be] offering the 16 ,20, and 25MHz Mac SE boards under its Excelerator brand name” – WK 1989.04 V.03.N15.p65

I could not find a matching board under the Irwin Excelerator brand.

MacProducts USA Railgun (Pro) 030: Plus, SE, Classic (16/25/33MHz, opt FPU)

by MacProducts USA, Inc 608 West 22nd St. Austin, TX 78705 (source Byte 1992.02), 8303 MoPac Expwy., #218, Austin, TX (source MW 1990.02). Became DGR Technologies Inc. in 1994 (drg.com), unfortunately there is no information on accelerators on the cached site.

Also sold as the Novy Quik30 (MW 1993.06)

These boards were renamed Railgun Pro when the less expensive Magic versions were released (see below).

Licensed from Novy, see: Novy Systems Quik30

source

MacProducts USA Railgun Pro II: LC (50, FPU, 64MB)

by MacProducts USA, Inc 608 West 22nd St. Austin, TX 78705 (source Byte 1992.02), 8303 MoPac Expwy., #218, Austin, TX (source MW 1990.02). Became DGR Technologies Inc. in 1994 (drg.com), unfortunately there is no information on accelerators on the cached site.

This appears to be the same board as the Novy Systems ImagePro II LC that I thought was never released. If it was released, I would love to get a copy of the drivers/enablers for it.

source

MacProducts USA MagicRailgun

by MacProducts USA, Inc 608 West 22nd St. Austin, TX 78705 (source Byte 1992.02), 8303 MoPac Expwy., #218, Austin, TX (source MW 1990.02). Became DGR Technologies Inc. in 1994 (drg.com), unfortunately there is no information on accelerators on the cached site.

source

MicroMac DiiMO 030: II, IIx, IIcx, IIci, IIsi, IIvx, IIvi, LC, LCII, LCIII, Performa 400, Performa 600, SE/30 (50MHz, opt FPU, 64KB cache)

Website: micromac.com, drivers

Originally the Logica LogiCache 50MHz, then the DiiMO Cache 030 (MK V07 N22), the manufacturing rights were sold to MicroMac when DiiMO stopped making accelerators.

“MicroMac Technology has incorporated accelerators originally developed by such firms as DiiMO, Dove, Harris, and Mobius into its product line.” MU 1997.07

source

MicroMac Marathon: Mac II (32MHz, opt FPU)

Website: micromac.com, drivers, manual v1.0

Originally the Dove 030 Mac II renamed when DiiMO stopped making accelerators

“MicroMac Technology has incorporated accelerators originally developed by such firms as DiiMO, Dove, Harris, and Mobius into its product line.” MU 1997.07

Clip on, Optional Extended Video

source

MicroMac MultiSpeed: Plus, SE (25MHz, opt FPU)

Website: micromac.com, drivers
Clip on, Optional Extended Video

SE version micromac.com
SE version Bolle from 68kmla

MicroMac Performer: Plus, SE, Classic (16MHz, opt FPU)

Website: micromac.com, drivers

Originally the Dove Marathon Racer renamed when DiiMO stopped making accelerators

“MicroMac Technology has incorporated accelerators originally developed by such firms as DiiMO, Dove, Harris, and Mobius into its product line.” MU 1997.07

Clip on, Optional Extended Video

source

MicroMac Performer Pro: Plus, SE, Classic (32MHz, opt FPU, 64KB cache)

Website: micromac.com, drivers

Originally the Harris Performer Pro SE, Classic renamed when Harris International stopped making accelerators

“MicroMac Technology has incorporated accelerators originally developed by such firms as DiiMO, Dove, Harris, and Mobius into its product line.” MU 1997.07

source

MicroMac Thunder: LC, LCII (Performa 400/405/410/430) &
Color Classic (32MHz, opt FPU)

Website: micromac.com, drivers

also offered as part of the MicroMac Power Workstation

Originally the Harris Performer Pro LC, LC II renamed when Harris International stopped making accelerators

“MicroMac Technology has incorporated accelerators originally developed by such firms as DiiMO, Dove, Harris, and Mobius into its product line.” MU 1997.07

MicroMac ThunderPro: LC, LCII (Performa 400/405/410/430) &
Color Classic (32MHz, opt FPU, 26MB)

Website: micromac.com, drivers

source

MicroMac ThunderCache: LC, LC II (32MHz, opt FPU, 32KB cache)

Website: micromac.com, drivers

source

MicroMac ThunderCachePro: LC, LC II, CC (32/50MHz, opt FPU, 26MB)

Website: micromac.com, drivers

Advertisement

NewLife Accelerator! 16 128k, 512K, 512Ke, Plus (16MHz, opt FPU, 16MB)

See my NewLife page for details on the NewLife 16

Clip on, optional SCSI and Video, seems to be a cost reduced version of the NewLife 25
Manual(s), drivers, advertisements and reviews

Photo by me

NewLife Accelerator! SE (16MHz, opt FPU, 16MB)

See my NewLife page for details on the NewLife 16SE

PDS, optional Video, a cost reduced version of the NewLife 25SE
Manual(s), drivers, advertisements and reviews

Photo by me

NewLife Accelerator! Classic (16, 20 Hz, opt FPU, 16MB)

See my NewLife page for details on the NewLife 16SE

PDS, optional Video, a cost reduced version of the NewLife 25SE
Manual(s), drivers, advertisements and reviews

Advertisement

NewLife 25 128k, 512K, 512Ke, Plus (25MHz, opt FPU, 4MB)

See my NewLife page for details on the NewLife 25

Clip on, Manual(s), drivers, advertisements and reviews

Photo by me

NewLife 25CL Classic (16/20/25MHz, opt FPU, 16MB)

See my NewLife page for details on the NewLive 25CL

Manual(s), drivers, advertisements and reviews

Advertisement

NewLife 25SE (25MHz, opt FPU, 16MB)

See my NewLife page for details on the NewLife 25SE

PDS Slot, Optional Extended Video, Manual(s), drivers, advertisements and reviews
Newbridge: Ad: MW 1990.02

NewLife 33SE (33MHz, opt FPU, 16MB)
Photo by me

NewLife 33SE (33MHz, opt FPU, 16MB)

See my NewLife page for details on the NewLife 33SE

PDS Slot, Optional Extended Video, Manual(s), drivers, advertisements and reviews
Newbridge: Ad: MW 1990.02

SE: David Cook mla68k
Classic: Bolle mla68k
Missing boot disk
Plus: Need photo

Novy Systems ImagePro: Plus, SE, Classic (16, 25,33, 40, 50MHz, opt FPU, 16MB)

Clip on, Extended Video.

The same as the Quick30 with the addition of support for an external video display.

Photo by me

Novy Systems ImagePro II: LC, LC II, CC (50MHz, opt FPU, 64MB)

PDS slot. I have a prototype of this board for the LC, LC II, CC, that I bought from a Novy Technology Inc employee in 2022. This board may have been sold by MacProducts as the Railgun Pro II accelerator (above). I thought this board was not released, if it was released, I would love to get a copy of the drivers/enablers for it.

Novy Systems Quik 30 Plus, SE, classic (16, 25, 33MHz, opt FPU, 16MB)

Also sold as the MacProducts USA RailGun (MW 1993.06)

Driver, may also be able to use NewLife drivers
Clip on (Plus), PDS slot (SE)

source

Radius Stage II Rocket

Radius.com: photos, Q&A, SCSI2Booster,

brochure

Siclone si30 II, IIx (33, 40, 50MHz, FPU)

by SiClone Sales & Engineering Corp, Sunnyvale CA (MW 1989.03 pg.258)

The company purchased by Applied Engineering in Fall of 1991 (MW 1991.08)

MW 1991.07

Siclone Intensifier ci (50MHz, opt FPU)

by SiClone Sales & Engineering Corp, Sunnyvale CA (MW 1989.03 pg.258)

Possibly renamed as AE TransWarp Cache-In 50 IIci when Applied Engineering purchased Siclone in Fall of 1991 (MW 1991.08).

Sonnet Alegro / Sonnet Doubler II, IIx (33MHz)

Website: Sonnettech.com, drivers
MacAddict 006

Sonnet Alegro LC, LC II, Color Classic (33MHz, FPU, 16k)

Website: Sonnettech.com, drivers

The Sonnet Allegro LC II processor upgrade card card doubles your CPU speed to a 33 MHz 68030, adds a 16K level 2 cache and includes an FPU


Sonnettech.com

Sonnet Alegro SE (33MHz, FPU, 16MB)

Website: Sonnettech.com, drivers

The Sonnet Allegro SE processor upgrade card card increases your CPU speed up to 460% includes an FPU and four 30-pin SIMM slots to expand memory up to 16MB

Sonnettech.com

Sonnet Alegro SE/30 (33MHz)

Website: Sonnettech.com, drivers

The Sonnet Allegro SE/30 processor upgrade card card doubles your CPU speed to a 33 MHz 68030.

TSI Enterprise IIsi, LC, LC II, SE/30 (25, 33, 40MHz, FPU)

Sold by Total Systems Integration

“This full 32-bit accelerator beefs up standard 68020 with a full strength 16MHz 68030 CPU. Additional MC68882 floating-point coprocessor is optional.” MW 1991.11 (photo)

Drivers, may also be able to use NewLife drivers, or Novy Drivers
Reviews: MW 1990.02MW 1990.08 
brochure

Missing boot disk
Need photo

TSI Gemini Plus, SE (20, 25MHz)

Sold by Total Systems Integration

Reviews MW 1991.07, MK 1988.11 V02 N44
Drivers brochure

68kmla electricmonk

TSI Gemini Classic (20, 25, 33, 40, 50MHz, opt FPU, 16MB)

Sold by Total Systems Integration, designed by Quesse Computer Co Inc, and Engineering Solutions Inc.

“Choose between 20Mhz, 25Mhz, 33Mhz, 40Mhz a 50Mhz 68030 CPU. Upgradable between different processor speeds. Optional 68882 math coprocessor and 4Mb a 16Mb of RAM using standard 1 Mb or 4Mb SIMMs. Includes special clip-on connector— no soldering required. Auxiliary power supply keeps your Classic cod.” MW 1991.11 (photo)

Drivers

Ad: MW 1991.11 (photo), brochure

Missing boot disk
Need photo

TSI Gemini Integra (33/50MHz, fpu)

Also sold by Extreme Systems as the Vandal SE (MW 1993.06)

Missing boot disk
Need photo

TSI Gemini II (33, 40, 50MHz, opt FPU, 16MB)

Sold by Total Systems Integration, designed by Quesse Computer Co Inc, and Engineering Solutions Inc.

Drivers brochure

SE 68kmla zigzagjoe
Missing boot disk
Need photo Plus
Missing boot disk
Need photo Classic

TSI Gemini Ultra: 128K, 512K, Plus, Plus, SE, Classic (33, 40, 50MHz, opt FPU, 16MB)

Sold by Total Systems Integration, designed by Quesse Computer Co Inc, and Engineering Solutions Inc., redesigned version of the Gemini II.

“The formidable, pace-setting Gemini II has been redesigned from the ground up for more speed, more reliability, easier installation, and 4MB SIMM support for up to 16MB a RAM. Choose from 20MHz, 25MHz, 33MHz, 40MHz 68030 CPU speeds. Burst-mode R/\M access adds 15% more speed than equivalent Gemini II configurations. Optional 68882 math coprocessor. 128K, 512K, Plus versions include free high speed SCSI, fan, and power supply; clip-on connector” MW 1991.11 (photo),

TSI Mercury 030: 128K, 512K, Plus, SE (16, opt FPU)

Sold by Total Systems Integration, designed by Quesse Computer Co Inc, and Engineering Solutions Inc.

“This well-balanced accelerator card for the Plus and earlier Macintoshes is fast with 32-bit RAM module for even greater speed, and even faster with the SCSI module added. The modular design keep costs under your control letting you add power when you decide you need it. Free VIRTUAL™, free fan and uprated power supply fa reliability included.” MW 1991.11 (photo)

PDS slot, Optional Extended Video

Missing boot disk
Need photo

TSI Voyager: II, IIx (50, opt FPU)

68040 Accelerators

The last of the 68k accelerators for Macintosh systems, due to architecture differences with 68k chips there are no accelerators for the Macintosh that use the 68060 CPU (there is no 68050 CPU).

MW 1992-06

AE TransWarp 040: II, IIcx, IIsi, IIci, IIfx (25, 33, 40MHz, FPU, opt 128K cache)

by Applied Engineering

Driver
Available at 3 speeds, the Transwarp 6425, Transwarp 6433 and the Transwarp 6440
Ad: brochure (ebay), MW 1992-06 (photo)

DayStar Digital Quad 040: Centris and Quadra (40MHz, 128k cache)

Not on the cached Daystar site, or in their 1995 catalog. Also sold as the Image 040 when bundled with a DSP daughter card

“Fastest imaging upgrade available. The Image 040 adds twin DSPs to Quad 040 power to accelerate over 20 Photoshop functions up to 300% faster than an 840ay, Includes Kudo Image Browser, Paint Alchemy, and Kodak Photo CD Access & Sampler.” MacConnection 1994

Ads: Daystar July 1994 Catalog, DayStar Digital Product Reference Notebook on CD-ROM (Macintosh version 1.1, 1994), MacConnection 1994 (photos)

DayStar Digital Turbo 040: II, IIx, IIcx*, IIsi, IIci, IIvi, IIvx, SE/30, Performa 600 (33, 40MHz, 128k cache)

Daystar.com, manual

  • Adapter required for SE/30, II, IIx, IIcx*, and IIsi. None needed for IIci, IIvx, IIvi and Performa 600
  • Supports Quadra compatible software and hardware
  • Supports virtual memory

“The Turbo 040 is the best accelerator family for the Mac SE/30 and the Mac II family” (MU1994.03). It can increase performance from 200-600% and is guaranteed compatible with all standard Quadra-compatible software and Mac Il-compatible hardware—even at full speed, Just plug it in! Turbo 040i provides accelerator power without the FPU for users who don’t need complex math acceleration. The FastCache Turbo 128K SRAM cache makes the Turbo 040 up to 70% faster” MacConnection 1994

Nathan_A at 68kmla

Formac ProQuadra: Centris 610, 660av, 650, Quadra 800, 900, 950 (40, 50MHz, FPU, 8k cache)

Website, drivers
Ad: Icônes 1993.12, MacWelt 1993.10 (photo)
Discussion: Nathan_A at 68kmla (photos)

Bolle at 68kMLA

Formac 475 : LC 475 (40, 50MHz, FPU, 8k cache)

Website, drivers

Discussion: 68kmla (photos), tinkerdifferent (photos), google groups (german)

Fusion Data Systems TokaMac LC (25, FPU)

Also sold by Total Systems as the Magellan 040 (MW 1993.06)

PDS slot
Review: Mac Welt 1992.10 (photo), Byte 1993.02 (Ad)

Bolle from 68kmla

Fusion Data Systems TokaMac ci (25, FPU)

Review: MU 1992.05 (Ad)

Missing boot disk
Need photo

Impulse Technology, Inc Performance/040: II, IIx, IIcx, IIci, IIfx, IIsi (25, 33 MHz, 128MB)

previously know as IIR Inc.

Review: Byte 1993.02, MU 1992.08, MU Buying Guide 1993

micromac.com
Bolle from 68kmla

MicroMac Carrera040: IIci, IIsi, IIcx or IIx (33, 40, 45 MHz, 128kb cache)

Website: micromac.com: 33,40, and 45, Carrera040 v1.8 (latest software with sound fix), manual v1.1

This appears to be the same board as the Mobius 040 Speedster (below) and may be the same as the Sonnet 040 Speedster (below). The Carrera040 driver may work for all 3.

“MicroMac Technology has incorporated accelerators originally developed by such firms as DiiMO, Dove, Harris, and Mobius into its product line.” MU 1997.07

IRVINE, Calif.–(BUSINESS WIRE)–June 16, 1995–Although Mobius Corp. announced that it will be closing its doors this month, Mobius customers will still have technical support available through Sonnet Technologies.”


micromac.com

MicroMac Speedster: LC, LCII (25, FPU)

Website: micromac.com, drivers

“MicroMac Technology has incorporated accelerators originally developed by such firms as DiiMO, Dove, Harris, and Mobius into its product line.” MU 1997.07

micromac

MicroMac SpeedDoubler: Quadra 700, 900 (50MHz, FPU, 128K cache)

Website: micromac.com, drivers

“MicroMac Technology has incorporated accelerators originally developed by such firms as DiiMO, Dove, Harris, and Mobius into its product line.” MU 1997.07

Mobius 040 Speedster: IIx, IIci, IIsi, IIcx (25, 33, 40MHz, 128K cache)

This appears to be the same board as the MicroMac Carrera040 (above) and may be the same as the Sonnet 040 Presto (below)

IRVINE, Calif.–(BUSINESS WIRE)–June 16, 1995–Although Mobius Corp. announced that it will be closing its doors this month, Mobius customers will still have technical support available through Sonnet Technologies.”

“MicroMac Technology has incorporated accelerators originally developed by such firms as DiiMO, Dove, Harris, and Mobius into its product line.” MU 1997.07

Radius.com

Radius Rocket: II, IIcx, IIci (25, 33MHz, FPU)

Radius.com: SCSI2Booster, brochure
NuBus slot

The two models appear identical in the photos, with the difference being the CPU speed.

Sonnet Presto 040: Mac IIvi, IIcx1,2, IIsi1, IIci, IIvx and Performa 600 (40MHz, FPU, 128k cache)

Website: Sonnettech.com, software v3.1 (the MicroMac Carrera040 v1.8 may also work)

1Adapter required for Mac IIcx and IIsi. 2Even with a Presto card, Mac OS 8.1 will not run on Mac IIcx.

This appears to be the same board as the Mobius 040 Speedster (above) that was renamed when Sonnet Technologies bought Mobius, and then later renamed again to the MicroMac Carrera040 (above) when Sonnet Technologies closed.

IRVINE, Calif.–(BUSINESS WIRE)–June 16, 1995–Although Mobius Corp. announced that it will be closing its doors this month, Mobius customers will still have technical support available through Sonnet Technologies.”

“MicroMac Technology has incorporated accelerators originally developed by such firms as DiiMO, Dove, Harris, and Mobius into its product line.” MU 1997.07

Sonnettech.com

Sonnet Presto Plus: Mac LC, LC II, LC III, LC III+, LC 520, LC 550; Performa 250, 275, 400, 405, 410, 430, 450, 460, 466, 467, 520, 550, 560; and Color Classic, Color Classic II (33MHz, FPU, 128k cache)

Website: Sonnettech.com, software v3.1 (the MicroMac Carrera040 v1.8 may also work)

This appears to be the same board as the MicroMac Speedster (above).

Sonnettech.com

Sonnet QuadDoubler: Centris 610, 650 & 660AV; Quadra 610, 660AV, 700 & 900; and Workgroup Server 60/20 & 60/25 (50MHz, FPU, 128k cache)

Website: Sonnettech.com

Plug the Sonnet QuadDoubler into a Quadra or Centris and double your computer’s speed. The QuadDoubler includes a Floating Point Unit for super-fast rendering or calculations and is Mac OS 8.1 compatible

Missing boot disk
Need photo

TechWorks LC (25MHz, FPU)

PDS slot

Missing boot disk
Need photo

TechWorks Nubus 040: II, IIcx, IIsi, IIci (33MHz, FPU)

NuBus slot

References and Timeline

10 Comments

    • Added, I put it under SuperMac. SuperMac bought Levco in 1987, and all the reviews I`ve found refer to it as the SuperMac SpeedCard. I’m still adding to this list as I have time. There seems to be a lot of instances where one company bought another, or licensed from another. E.g. a lot of companies seem to have licensed tech from Novy, or simply re-branded a Novy accelerator as their own. E.g. Daystar selling the Novy Mac20Mx.

  1. Paul Paul

    Share driver for the Mobius 30?

    • I’m using the 4.99 Mobius driver, and Compact Virtual 3.02. I plan to post an entry on my site soon for how I have this all setup on my SE sometime this winter (way to many outdoor chores at the moment). Note: You can only use up to System 7.1.3 with Compact Virtual 3.02. System 7.5.x is NOT supported. Lack of support for System 7.5.x was an issue for pretty much all of these old accelerators. That said, you can use the Mobius accelerator on the SE under 7.5.5, you will get the CPU bump (or at least I did), but will not have access to the extra memory. I need to do some more tests to see what memory is being used, the 4MB on the MB, or the first 4MB on the accelerator.

  2. rick rick

    It is Harris Performer2, Peformer2. Do you have more information on this piece of hardware, I can’t find anything on the internet ? Your description says “extended video” but was it in color? accelerated? did it used vram? Also, you mention it has a fpu, was it the 68881 ot 68882? was it memory mapped? Even an scanned review would be nice.

    Thanks in advance

    • Hi Rick, I was able to find a review and an advertisement. The advertisement mentions the video out port. I have also sent a message to Michael Harris (the company founder) through linkedin to see if he has any documentation or disks from those days. Will post more as I find it.

      • rick rick

        It would be nice if documentation or drivers could be preserved for posterity. Thanks again.

  3. Ben Burch Ben Burch

    Hi!

    I still have a MacPlus with a Brainstorm I installed back in the day!

    It boots, but needs a new analog card as the screen shimmies.

  4. Kenny R Kenny R

    Hi, I’m trying to identify this LCII (and possibly other models) accelerator I have:

    https://imgur.com/a/YvWANva

    The only possible identifying mark I can find on it is the white sticker on the front that I think reads “STI50112”. When installed in an LCII, it appears that the CPU, FPU, and onboard RAM is recognized without needing to install any driver or extension. I don’t know if there is a driver or anything for it because I don’t know what it is. If I install 16MB of RAM on the accelerator, it’s all recognized and any RAM on the LCII’s logic board is ignored. Tattletech can’t read the CPU frequency (shows a really large number). Anyways, I’d really like to identify this accelerator!

    • Try posting on https://68kmla.org/, one thing I plan to do is redo this page with more photo to help people identify cards with no branding.

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