Skip to content

68k Accelerators, FPUs and other CPUs

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), 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.

The first mention I found for memory upgrades were in June 1985 (for the 128K and 512K), and 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.

So far I have found information on Accelerators from the following companies: Apple, Aox, Beck-Tech, Brainstorm, Computer Sales Associates (CSA), DayStar, Dove Computer Corporation, Extreme Systems, Fusion Data, General Computer Company (GCC), Harris Laboratories, Irwin, Levco, Mac Advance, MacMemory, MacPeak, MacProducts, MassTech, MicroConversion, MicroMac, Mobius, Network Spacialties, NewLife/New Bridge, Novy Systems, Radius, Ryad, Siclone Sales and Engineering Corp., Spectra, Sonnet, SuperMac, Techworks, Total Systems Integration (TSI), Quesse, Warp Nine.

One difficulty I’ve had with creating an exhaustive list is how many accelerators from the time period do not have any identifying information and how many are the same accelerator with a different name, with the name change due to licensing (e.g. from Novy and Quesse to Total System Inegrations) 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).

Accelerators

The following table lists the accelerators I have found listed in scans of Byte, ComputerWorld (CW), InfoWorld (IW), MacWorld (MW), MacUser (MU), or on the internet in general. In addition to the table, I have started recording information about each of the companies that produced the accelerators, specifically information about bankruptcies, sales, mergers and licensing agreements that led to the same accelerator being listed under multiple different names.

NameSupportsCPUMHzFPUMemoryComments
(CW = ComputerWorld, IW = InfoWorld, MW = MacWorld, MU = MacUser)
Apple Classic II UpgradeClassic6803016NoNew logic board and case
Apple LC II UpgradeLC6803016noNew logic board
Apple IIci UpgradeIIcx6803025IncNew logic board
Apple IIfx UpgradeII6803040IncNew logic board
Apple Quadra 700IIcx, IIci6804025NoNew logic board/ports
Applied Engineering TransWarpSE6803025, 40Opt16MBDriver
Clip on, Optional Extended Video
Ad: MW 1991.11 (photo), MW 1991.12 (photo)
Photos: Revision I, Revision II
Applied Engineering TransWarpClassic
Applied Engineering TransWarp Cache-InIIciN/AN/AN/A64K cacheAd: MW 1991.11 (photo),
Applied Engineering TransWarp Cache-In 50IIci6803050Inc64K cacheReview: Byte 1993.02
Ad: MW 1991.11 (photo),(advertisement)
Applied Engineering TransWarp LCLC, LC II6803050OptPDS slot
Applied Engineering TransWarp 030II, IIcx, IIsi, IIci, IIfx6804033IncDriver
NuBus slot
Applied Engineering TransWarp 040II, IIcx, IIsi, IIci, IIfx6804025, 33IncNuBus slot
Ad: MW 1992-06 (photo)
Applied Engineering QuickSilverIIsiN/AN/AOptcacheIIsi slot extender allows you to use cards created for the SE/30 in your IIsi
Ad: MW 1991.11 (photo),
Aox DoubleTime-16SE68000164k cacheReview: MW 1988.09, BYTE 1988.12, MU 1989.02 (photo), MW 1990.02
Beck-Tech MacMegabytes512k1MBHyperdrive Compatible, requires modification to case/board
Review: MW 1986.02
Ad: MW 1985.10 (photo), MW 1986.02 (photo)
List: MW 1987.11
Centa Systems, Inc128K, 512K2MBAd: MW 1985.12
Brainstorm Accelerator PlusPlus, SE6800016Driver
Two chip motherboard modification, 16MHz 68000 and a ASIC chip to replace the Apple timing chip.
Review: MU 1993.04, Low End Mac, Byte 1993-02
Books: MacWeek upgrading and repairing your Mac p.211Upgrading and Fixing MACs for dummites p.72,
News: 1991 Press Release,
Photos: ChipsManuals
Computer Care MacRescue128k, 512kManual
Computer Systems Associates (CSA) FasTrackPlus, SE680208Review: MW 1990.02
Computer Systems Associates (CSA) FX882-25II, IIx25Review: MW 1990.02
Computer Systems Associates (CSA) FX882-33II, IIx33Review: MW 1990.02
Computer Systems Associates (CSA) Over 030II6803025Review: MW 1989-03, MW 1990.02
Dayna MacCharliePlus80888Review: MW 1986.02
DayStar Digital Max20MX512e, Plus, SE 6802016, 25Licensed from Novy, see: Novy Max20MX
Review: MU 1989.02 (photo), MW 1989-03 (photo)
Ad: MU 1988-10, 12
DayStar Digital FastCache IIciIIciManual
Ad: MW 1991.11 (photo),
DayStar Digital Turbo 40II, IIx, IIcx*, IIsi, IIci, IIvi, IIvx, SE/30, Performa 6006804033,40Daystar.com, manual
DayStar Digital Universal PowerCacheSE/30, LC, LC II, II, IIcx, IIsi, IIci6803033, 40, 50Opt32KDaystar.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
Review: Byte 1993.02
Ad: MW 1991.11 (photo)
DayStar Digital PowerCard6803025, 33, 40, 50News Release, Daystartechnology.com
DayStar Digital Accelerator IIII6803033Review: MW 1989.03
Ad: MU 1989.02,
DiiMO TechnologiesDriver
Dove FastNet LAN 020SE6802016MW 1990.02
Dove Mac SnapPlus4MBAd: MW 1986.12 (photo)
Dove Mac Snap 020Plus, 512E6802016OptReview: CW 1987.12
List: MW 1987.11
Dove Mac Snap 020 SESE6802016OptReview: CW 1987.12
List: MW 1987.11
Dove Mach II/SESE68020Ad: MW 1988.10 (photo)
Dove Marathon Racer 030 PlusPlus, SE, Classic6803016OptDriver
Clip on, Optional Extended Video
Reviews: MW 1990.08MW 1991.07Byte 1993-02, MU 1993.04
Dove Marathon 020SE6802016Review: BYTE 1988.12, MU 1989.02, MW 1989-03
Dove Marathon 030 Enhancement II6803032NoRebranded the MicroMac Marathon when Dove stopped making accelerators.
CPU Socket
Review MW 1989-03 (photo)
Ad: MW 1991.11 (photo)
Extreme Systems ExtenderDriver
Extreme Systems VandalSE6803033, 50YesDriver, manual
Clip on, Extended Video
Review: Byte 1993.02
Extreme Systems ImpactLC, LC II6803033OptDriver
PDS slot
Review: Byte 1993-02
TokaMac Acceler 88II88100 RISCBrochure
Formac Pro33 LCLC, LC II6803033OptWebsite, drivers (photos)
Review: Icônes 1993.12 (french, photo), MacWelt 1993.10 (german)
Ad: Icônes 1993.12, MacWelt 1993.10 (photo)
Discussion: 68kmla (photo)
Formac Pro50 LCIIILC III6803050Inc32K cacheWebsite, drivers
Review: Icônes 1993.12 (french)
Ad: Icônes 1993.12, MacWelt 1993.10 (photo)
Formac ProQuadra (PL145-41)Centris 610, 660av, 650, Quadra 800, 900, 9506804040/50Inc8K cacheWebsite, drivers
Ad: Icônes 1993.12, MacWelt 1993.10 (photo)
Discussion: 68kmla (photos)
Formac 475 (PL150-21)LC 47568040Discussion: 68kmla (photos), tinkerdifferent (photos), google groups (german)
Fusion Data TokaMac SX6804025YesPDS slot
Fusion Data TokaMac LCLC6804025YesPDS slot
Review: Byte 1993.02
General Computer Company (GCC) Hyperdrive 2000 128k, 512k, 512KE, Plus6800012Opt1.5MBNo MMU, Optional 68881 FPU, adds internal 20MB hard drive
Manual for the Hyperdrive hard drive
News: MW 1986.03, MW 1986.09,
Review: MW 1986.08, BYTE 1986.11
Ad: MW 1986.08, MW 1987.04
General Computer Company (GCC) HyperCharger 020SE6802012, 16Opt4MBDriver
No MMU, Connector for the Big Picture monitor from E-machines Review: MW 1987.09, CW 1987.12, MU 1988.03, MU 1989.02 (photo), MW 1989.03
Ad: MU 1987.08, MU 1987.11 (photo)
Harris PerformerClassic6800016Opt64k cacheOther: MW 1992.09
News: CW 1991.10.14
Review: Build your own Macintosh and save a bundle (photo)
Ad: MW 1991-11 (photo), MU 1992.01 (photo, photo), MU 1992.07 (photo),
Harris Performer2SE6800016YesPDS slot, Extended Video
Review: Byte 1993-02
Ad: MW 1993.10 (photo)
Harris Performer3
Harris PerformerProSE, Classic6803025OptNews: MW 1993.11
Harris PerformerPro LCLC, LC II6803032OptNews: MW 1994.02
Harris Performer040
Human Touch Computer Products Corp. Three to One Touch Board128K, 512K68000121.5MB to 3.5MBAd: MW 1986.01, MW 1986.09
512KB programable ROM
Irwin Excelerator XLSE680001632kReview: MW 1990.02
Irwin Magnetics Excelerator XL20/XL25SE6802020, 25IncReview: MW 1989-03
Ad: MU 1989.02 (photo)
Impulse Technology, Inc Performance/040II, IIx, IIcx, IIci, IIfx, IIsi6804025, 33128MBReview: Byte 1993-02
Levco One PLUS One1MBAd: MW 1986.12 (photo)
Levco MonsterMac512k2MBIncludes Fan, requires modification to case/board.
Review: MW 1985.09, MW 1986.02
Ad: 1986.07 (photo)
News: MW 1987.11
Levco Prodigy 4128k, 512k, 512KE, Plus6802016Opt4MBNo 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.
Review: MW 1986.08, MW 1986.09, MW 1987.11, CW 1987.12, MW 1988.02MW 1988.08, MU 1989.02
Ad: MW 1986.08 (photo), 1987.10 MU (photo)
News: MW 1987.11
Levco Prodigy PrimePlus6802016688811MB to 32MB 68851 MMU, Clip-on
Review: MU 1987.09,
Ad: MU 1987.10,
Lists: MW 1987.11, CW 1987.12.
Levco Prodigy SESE6802016Opt4MB, 32MBOptional MMU, Connector for MegaScreen II from Micrographics Images
According to the review the accelerator may support up to 32MB if the 68851 Paged Memory Management Unit (PMMU) is installed.
Review: MW 1987.09, MU 1987.09, MU 1987.11 (photo), MU 1988-03 (photo), MU 1989-02 (photo), 1989-03 benchmark
Ad: MU 1987.10, MU 1987.11 (photo)
List: MW 1987.11, CW 1987-12,
Logica LogiCache IIsi, IIci6803050OptAd: MW 1991-11 (photo)
Cache-card slot (April 1993)
Mac Advance MacGusto II512KEnoneOpt2.5MBNo MMU, Adds SCSI
Mac Doctor Electronics Brainstorm128K, 512K1MB to 4MBAd: MW 1986.02, MW 1986.04, MW 1986.07, MW 1986.12
List: MW 1987.11
MacDoctor Electronics MacDoctor 512128K384KUpgrades 128K to 512K
Ad: MW 1986 Winter
List: MW 1987.11
MacMemory, Inc. MaxPlus MegaPlus2MBList: MW 1987.11
MaxMemory, Inc. MaxSAVEPlusBattery backed up RAM disk.
Ad: MW 1986.12 (photo)
Review: MW 1986.12 (photo)
MacMemory, Inc. TheMax128k, 512k1.5MBRequires modification to case/board
Review: MW 1986.02
Ad: MW 1985.10, MW 1985.11 (photo), MW 1986 Winter
MacMemory, Inc. TheMax2128k, 512k2MBAd: MW 1986.02 (photo), MW 1986.03, MW 1986.04, MW 1986.06 (drawing), MW 1986.08 (photo)
MacMemory, Inc. TheMaxPlusPlus, II2MBAd: MW 1986.04, MW 1986.06 (drawing), MW 1986.07 (photo), MW 1986.12 (photo),
List: MW 1987.11
MacMemory TurboMax512KE, Plus6800016Opt4MBNo MMU, Connector for the Big Picture monitor from E-machines, SCSI port, RAM disk. Includes fan and power supply
Review: Byte 1987.12 (photo)
MW 1987.02, CW 1987.12,  MW 1988.02, MU 1988.03 (photo)
Ad: MU 1987.08
MacMemory Turbo SESE6800016Opt4MBNo MMU, Connector for the Big Picture monitor from E-machines
Reviews: CW 1987.12, MU 1988.03
Ad: MU 1987.11 (photo)
MACohm Projects 512K upgrade128K, 512K384K, 1.5MBAd: MW 1985.06, MW 1985.09, MW 1985.10, MW 1986.02
MacPeak Systems Plus-RAMPlus2MBList: MW 1987.11
MacPeak Systems Orion 25SE6802025Opt8MBOptional MMU, Galaxy Adapter option,
Reviews: CW 1987.12,
MW 1989.03 benchmark
MacPeak Systems Orion SESE6802016Opt8MB, 32MBOptional MMU, Galaxy Adapter option
According to the review the accelerator may support up to 32MB if the 68851 Paged Memory Management Unit (PMMU) is installed.
Manual
Reviews: MU 1987.08 (photo), MW 1987.09, MW 1987.11, CW 1987.12, : MU 1988.03 (photo), MU 1989.02 (photo), MW 1989-03 benchmark
Ad: MW 1988.10 (photo)
MacPeak The Orion OneAd: MW 1988.10 (photo)
MacPeak The Orion IIAd: MW 1988.10 (photo)
MacProducts USA 2MBPlus2MBList: MW 1987.11
MacProducts USA MagicPlus, II, 512K, 128K1MBList: MW 1987.11
MacProducts USA Railgun 020 Plus/SE128k, 512K/KE, Plus, SE6802016, 25Licensed from Novy, see: Novy Max20MX
Review: MW 1990.02
MacProducts USA Railgun 030 Plus/SE128k, 512K/KE, Plus, SE6803016, 25, 33OptLicensed from Novy, see: Novy Systems Quik30
Clip on,
Reviews: MW 1990.02 (16,25), Byte 1993.02
MW 1990.08 (16, 25, 33), MW 1991.07MW 1992.06MU 1993.04
MacProducts USA Railgun Pro 030Plus, SE, Classic6803015, 25, 33Opt16MBReview: Byte 1993.02
MacProducts USA Railgun Pro IISE 30, LC LC II, Color Classic, SI, SI6803050Inc64MBLicenced from Novy, see: Novy Systems ImagePro II / Image Pro LC
Ads: MW 1993.12, MU 1994.01, MW 1994.12 (picture).
MacProducts USA Magic 020Plus6802012.5IncnoneNo MMU, Cpu can be upgraded to a 68030
Reviews: MW 1988.02MW 1988.08
MASS MICROSE, II2MBList: MW 1987.11
MASS MICRO PLUSPlus2MBList: MW 1987.11
Mass Tech FastMac512k1MB, 1.5MB, 2MB2MB requires a separate power supply, includes fan
Review: MW 1986.02
Ad: MW 1985.06, MW 1985.11, MW 1985.12
Mercury Computer Systems, IncWeitek XL-8032Review: BYTE 1988.12
Micah Memory Card2MB, 4MBAd: MW 1986.03
Micro Conversions, Inc. 1 Meg Upgrade 128k, 512k512K to 4MBIncludes Fan, requires modification to case/board
Review: MW 1986.02
Ad: MW 1985.08, MW 1985.10, MU 1985.11, MW 1986.02 (picture)
MicroMac Carrera 040IIci, IIsi, IIcx or IIx6804033, 40,45128kbmicromac.com: 33,40, and 45, manual v1.1
MicroMac DiiMO 030II, IIci, IIvx, IIvi, IIsi, IIcx, IIx, LCIII, Performa 600, SE/306803050Opt64kbmicromac.com, drivers
MicroMac MarathonII6803032Optmicromac.com, drivers, manual v1.0
MicroMac MultiSpeedPlus, SE6803025Optmicromac.com, drivers
Clip on, Optional Extended Video
Reviews:  MU 1993.04
MicroMac PerformerPlus, SE, Classic6803016Optmicromac.com, drivers
MicroMac PerformerProPlus, SE, Classic6803032Opt64kbmicromac.com, drivers
MicroMac Power WorkStationLC, LCII6803032Opt32kbmicromac.com, drivers, adds ThurderCache and Network card.
MicroMac SESE, SE/30N/AIncA case (for the SE, SE/30 logic board) and external monitor adapter, converts the SE, SE/30 in to a LC type computer with an external monitor.
Review: upgrade your mac (photo), MW 1991.01
Ad: MW 1991.06 (photo)
MicroMac SpeedsterLC, LCII6804025Incmicromac.com, drivers
MicroMac SpeedDoublerQuadra 700, 9006804050Inc128Kmicromac.com, drivers
MicroMac ThunderLC, LCII6803032Optmicromac.com, drivers
MicroMac ThunderCacheLC, LCII6803032Opt32kbmicromac.com, drivers
MicroMac ThunderCacheProLC, LCII or Color Classic6803032, 50Opt26MBmicromac.com, drivers
MicroMac ThunderProLC, LCII or Color Classic6803032Opt26MBmicromac.com, drivers
Mobius 030SE, Classic6803025Opt16MBDriver
Clip on, Extended Video
Reviews: MW 1991.07, Byte 1993.02, MW 1993.06
News: CW 1991.04, CW 1991.08
Ads: MW 1991.11 (photo), MU 1992.05 (photo), MU 1992.10 (photo), MU 1993.06 (photo) MW 1993.07 (photo)
Mobius SpeedScreenSE68000
Mobius 040 SpeedsterIIx, IIci, IIsi, IIcx, LC6804025, 33, 40128kbDriver
Reviews: MW 1995.02
Ads: MU 1994.01 (photo), MW 1995.01 (photo), MW 1995.03 (photo)
National Semiconductor Corp. NS8/16-48II4MB, 8MB, 16MBList: MW 1987.11
Network Specialties Jump 020512KE, Plus6802012Opt4MBNo MMU, StretchScreen and StretchProjector, Can also run at 16 and 24 MHz
Review: CW 1987.12,  MW 1988.02MW 1988.08
Ad: MW 1987.10 (photo)
NewBridge UltraMax NM MX-25512KE, Plus, SE6802025Rebranded to Newlife 25 and Newlife 25SE
Ad: MW 1990.02
NewBridge UltraMax NM MXC-33512KE, Plus, SE6802033Rebranded to Newlife 33SE
Ad: MW 1990.02
NewLife 1128k, 512K, 512Ke68HC0004MBClip on, SCSI Port
Manual(s), drivers, advertisements and reviews
NewLife 2128k, 512K, 512Ke68HC0004MBClip on, SCSI Port, Video Port
Manual(s), drivers, advertisements and reviews
NewLife 16128k, 512K, 512Ke, Plus6803016Opt16MBClip on, optional SCSI and Video, seems to be a cost reduced version of the NewLife 25
Manual(s), drivers, advertisements and reviews
NewLife 16SESE6803016Opt16MBPDS, optional Video,
seems to be a cost reduced version of the NewLife 25SE
Manual(s), drivers, advertisements and reviews
NewLife 25128k, 512K, 512Ke, Plus6803025Opt4MBClip on,
Manual(s), drivers, advertisements and reviews
NewLive 25CLClassic6803016, 20, 25Opt16MBManual(s), drivers, advertisements and reviews
NewLife 25SESE6803025Opt4MB, 16MBPDS Slot, Optional Extended Video
Manual(s), drivers, advertisements and reviews
NewLife 33SESE 6803033Opt16MBManual(s), drivers, advertisements and reviews
Novy Floating Point Accelerator128k, 512k, 512KE, PlusN/AYesClip on, requires special software. Review: MW 1986.08, MW 1986.09
Novy Systems ImageProPlus, SE6803016, 25, 33, 40, 50Yes16MBClip on, Extended Video
The same as the Quick30 with the addition of support for an external video display.
Reviews: MU 1993.04,  MW 1993.12
Book: Macintosh Do It Yourself Upgrade Book 1992,
Novy Systems ImagePro II / Image Pro LC
SE 30, LC LC II, Color Classic, SI, SI
6803050Inc64MBPDS 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 after Novy Systems went bankrupt.
Ads as Image Pro II: MW 1993.12, MU 1994.01, MW 1994.12, (picture), as Image Pro LC: Macwelt 1993
Novy Systems Mac20680208Reviews: MW 1987.01, MU 1988.03 (photo), MW 1990.02
Ad: MU 1987.08
Novy Systems Mac20Mx 512KE, Plus, SE6802012, 16, 20, 24Opt4MBNo MMU, Includes fan and power supply, SCSI port is optional
Review: MW 1988.02, MU 1988.03 (photo), BYTE 1988.12
Ads: MU 1987.08, MW 1990.02
Novy Systems Quik 30Plus, SE6803016, 25, 334MB, 16MB (SE only)Driver, may also be able to use NewLife drivers
Clip on (Plus), PDS slot (SE)
Reviews: MW 1990.08MW 1991.07MW 1992.06MW 1993.06MW 1993.12, MW 1995.02
Books: Macintosh Do It Yourself Upgrade Book 1992 (photo)Build your own Macintosh and save a bundle 1992 (photo)
Ad: MU 1990.05,
OpenMac Enterprises Ram SeriesPlus, SE, II2MB, 4MBList: MW 1987.11
OpenMac Enterprises RamPlusPlus2MB, 4MBList: MW 1987.11
Quesse Maccelerator128k, 512k, 512KE, PlusYesClips on, includes QuickSANE that redirects SANE requests to the FPU.
MW 1986.08MW 1986.09
Radius Accelerator512KE, Plus, SE6802016Opt32K cacheRadius.com: Q&A and drivers
No MMU, Full Page Display (SE only)
Reviews: MW 1987.09, Byte 1987.12 (photo), CW 1987.12,  MW 1988.02MU 1988.03 (photo), MW 1988.08, BYTE 1988.12, MU 1989.02 (photo), MW 1989.03 (benchmark, photo), MW 1990.02MW 1990.08
Other: Drivers
Radius Accelerator 25SE6802025Radius.com: Q&A and drivers, brochure
Review: MW 1988.10, BYTE 1988.12
Radius RocketII, IIcx, IIci6804025YesRadius.com: photos, Q&A, manual, SCSI2Booster, brochure
NuBus slot
Radius RocketII, IIcx, IIci6804033YesRadius.com: photos, Q&A, manual, SCSI2Booster, brochure
NuBus slot
Radius Stage II RocketRadius.com: photos, Q&A, SCSI2Booster,
Ryad Mac Engine GT128K, 512K, 512KE, Plus6800016No4MBNo MMU, Includes fan and power supply, and SCSI port
Reviews: MW 1987.01, MW 1988.02MW 1988.08
Ryad MacEngine Turbo128K, 512K, 512KE, Plus6802016Opt4MBNo MMU, Includes fan and power supply, and SCSI port
Reviews: MW 1987.01, MW 1988.02MW 1988.08
Siclone si30II, IIx6803033, 40, 50IncCompany purchased by Applied Engineering in 1991 (MW 1991.08)
brochure, MW 1988-01, IW 1988-11, MW 1988-01,
Siclone Intensifier cici6803050OptCompany purchased by Applied Engineering in 1991 (MW 1991.08) brochure
Siclone Turbo SESE6800016Reviews: MU 1989.02 (photo), MW 1989.02 (photo), MW 1989.03
Ads: MW 1988.10,
Siclone MacAdapt512KE, Plus6800016Adapter for the TurboSE
Ads: MU 1988.09, MW 1988.10
Spectra Micro Development MacAccelerator512KE, Plus, SE6802012IncNoneNo MMU, Connector for the Big Picture monitor from E-machines
Reviews: MW 1988.02MW 1988.08
Spectra Micro Development ProBoard6802016Review: MW 1990.02
Sonnet Alegro IIII, IIx6803033Sonnettech.com, drivers
MacAddict 006
Sonnet Alegro LCLC, LC II, Color Classic6803033Inc16k cacheSonnettech.com, drivers
Sonnet Alegro SESE6803033Inc16MBSonnettech.com, drivers
Sonnet Alegro SE/30SE/306803033Sonnettech.com, drivers
Sonnet Presto 040IIvi, IIcx, IIsi6804080/40Inc128k cacheSonnettech.com, software v3.1
Adapter required for Mac IIcx and IIsi.
Sonnet Presto PlusMac 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.6804066/33Opt32MBSonnettech.com, software v3.1
Includes built-in 10-base-T internet
Supports up to System 8.1 for some systems (LC up to 7.6.1, IIc up to 7.5.5)
Sonnet Speedsterdriver v1.5
Sonnet Quad DoublerCentris 610, 650, 660AV; Quadra 610, 660AV, 700, 900; WS 60/20 & 60/2568040100/50, 80/40Inc0MBSonnettech.com
SuperMac Technology Ehance512E, 512KE2MBList: MW 1987.11
SuperMac Technology SuperRam 2Plus4MBList: MW 1987.11
SuperMac Technology SpeedCardSE6800015.67Opt1MBReview: MU 1989.02 (photo), video.
News: IW 1988.02, MU 1988.08, MU 1988.12, MU 1989.02,
SuperMac Technology Prodigy SESE6802016Inc8MBNo MMU, Connector for the Big Picture monitor from E-machines, uses ZIPs for memory
TechWorks LCLC6804025IncPDS slot
TechWorks NuBus 040II, IIcx, IIsi, IIci6804033YesNuBus slot
Total Systems Integration (TSI) Enterprise 030LC, LC II6803016IncPDS slot
Ad: MW 1991.11 (photo),
Total Systems Integration (TSI) 020512KE, Plus, SE6802012, 16, 20, 24Opt4MBDrivers See also: Novy Max20MX
No MMU, Includes fan and power supply, and SCSI port
Ad: MU 1987.12
Reviews: IW 1987.09, CW 1987.12, MW 1988.02MW 1988.08 (photo), Byte 1987.12 (photo), MW 1990.02MW 1990.08 
News: MW 1987.12
Total Systems Integration (TSI) Gemini 030Plus6803016, 20, 25Drivers, may also be able to use NewLife drivers, or Novy Drivers
Reviews: MW 1990.02MW 1990.08 
brochure
Total Systems Integration (TSI) Gemini IIPlusReviews MW 1991.07 
Drivers brochure
Total Systems Integration (TSI) Gemini ClassicClassic20,25,33, 40Opt16MBAd: MW 1991.11 (photo),
Drivers brochure
Total Systems Integration (TSI) Gemini 50Drivers
Total Systems Integration (TSI) Gemini Ultra128k, 512K, Plus, SE6803020,25,33, 40Opt16MBReviews: MW 1992.06Byte 1993-02
Books: Macintosh Do It Yourself Upgrade Book 1992 p.131Build your own Macintosh and save a bundle 1992 p.98
Ad: MW 1991.11 (photo),
Drivers
Total Systems Integration (TSI) Gemini Ultra ClassicClassic6803020, 33, 50OptDrivers
Clip-on, optional extended graphics
Total Systems Integration (TSI) MagellanSE/30, IIsi, IIci, IIFX6804025YesPDS slot
Ad: MW 1991.11 (photo), brochure
Total Systems Integration (TSI) Mercury 030SE6803016OptPDS slot, Optional Extended Video
brochure
Reviews: MW 1990.08MW 1992.06
Books: Macintosh Do It Yourself Upgrade Book 1992 p.131
Ad: MW 1991.11 (photo),
Total Systems Integration (TSI) VoyagerII6803050OptCPU socket
brochure
Review: Byte 1993.02
VOAD Systems The MacBoard128K384KAd: MW 1985.08, MW 1986.02
Warp Nine Engineering, Inc DataRamPlus2MBAd: MW 1986.12
List: MW 1987.11
Warp Nine Engineering, Inc MonsterRamPlus2.5MBAd: MW 1986.12
List: MW 1987.11
For use with an internal hard disk
Warp Nine Engineering, Inc WarpRam512K, 512KE1MBList: MW 1987.11
Logic board upgrades and addon cards by Apple

Manufacturers

Some additional details I found about the following manufactures: Apple, Aox, Beck-Tech, Brainstorm, Computer Sales Associates (CSA), DayStar, Dove Computer Corporation, Extreme Systems, Fusion Data, General Computer Company (GCC), Harris Laboratories, Irwin, Levco, Mac Advance, MacMemory, MacPeak, MacProducts, MassTech, MicroConversion, MicroMac, Mobius, Network Spacialties, NewLife/New Bridge, Novy Systems, Radius, Ryad, Siclone Sales and Engineering Corp., Spectra, Sonnet, SuperMac, Techworks, Total Systems Integration (TSI), Quesse, Warp Nine.

Aox, Inc. (1978 to 2004)

They did have a website, but the first cached copy is from 1999.01.25 and there is no information about their earlier products or mention of them on their company history page.

Apple

30636 Mariani Ave. Cupertino, CA 95014 (source Byte 1992.02)

Apple mainly offered upgrades in the form of new logic boards for their systems, e.g. when the 512 was released you could swap out the 128’s logic board with the 512’s, etc. For now I’ve limited the list to an upgrade in the CPU.

Applied Engineering

P.O. Box 5100 Carrolton, TX 75011 (source Byte 1992.02)

Applied Engineering initially made a name for itself building Apple II accelerators, but also created several Macintosh accelerators with the same TransWarp branding before they went out of business in 1994. Additional information is available on wikipedia.

In fall of 1991 Siclone Sales and Engineering went bankrupt and Applied Engineering took over their product line (MacWorld 1991.08).

Beck-Tech

Brainstorm

Computer Sales Associates (CSA)

DayStar Digital

55560 Atlanta Hwy. Flowery Branch, GA 30542 (source Byte 1992.02)

DayStar Digital appears to have had a licensing agreement with Novy Systems Inc with their Max20MX being identical to the Novy Max20Mx accelerator.

Daystar is one of the few companies making accelerators for 68k Macintosh systems that was still around when the internet archive started backing up websites, so I was able to find the actual product page for the Daystar PowerCache from November 2nd 1996, and learn that it was last manufactured in Fall 1996, with support ending September 1, 1997:

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

Daystar Technologies appears to have closed down sometime around January 2002, with the Daystar.com domain being taken over by the DayStar television network by March 2002

Dove Computer Corporation

1200 North 23rd St. Wilmington, NC 28405 (source Byte 1992.02)

When Dove ceased production of accelerators it’s Dove Marathon 030 CPU upgrade design was purchased by MicroMac and rebranded as the MicroMac Marathon.

Extreme Systems

Fusion Data Systems

8920 Business Park Dr. Suite 35D (source Byte 1992.02)

General Computer Company (GCC) / General Computer Corp.

  • Address: 215 First St. Cambridge, MA 02142 (source The Amiga 1985.08), 580 Winter Str. Waltham, MA 02154 (source MW 1990.02)
  • Website: gcctech.com first catch is 1998.01, no information on the accelerators.

GCC was founded in 1981 during the onset of the video game craze. C.E.O. Kevin Curran and MIT classmates Doug Macrae and John Tylko began by developing an enhancement for Atari’s “Missile Command” and went on to create “Ms. Pac Man”, still one of the top-selling coin-operated video games in history. Between 1982 and 1984, GCC developed a total of 58 consumer electronics products that generated over $800 million in revenue for Atari and Bally Manufacturing. 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)

Appears as General Computer Corp. under some advertisements and reviews. Later became GCC printers

Harris Laboratories, Inc (1988 to 1993) / Harris International (1993 to …)

Harris Laboratories, Inc (Inactive) Business Corporation (domestic), Business Corporation (domestic), 1143 Riverwood Dr, Burnsville, MN 55337

  • 7379 Washington Ave S, Edina, MN 55439 (source Byte 1992.02)
  • Date Established: Nov 16, 1988
  • Chief Executive Officer: Michael D Harris
  • Sold to an investment bank in 1992 and re-branded as Harris International in 1993 (source Michael Harris)

Created memory expansion cards for the GS before creating accelerators for Macintosh Systems.

Irwin Products Group

  • Address: 2010 Commonwealth Blvd. Ann Arbor, MI 48105 (source MW 1990.02)

Levco

Bought by SuperMac’s parent SMS in 87, Levco and supermac merge october 87

Mac Advance

MacMemory

MacPeak

MacProducts USA, Inc

608 West 22nd St. Austin, TX 78705 (source Byte 1992.02), 8303 MoPac Expwy., #218, Austin, TX (source MW 1990.02)

MacProducts appears to have had a licensing agreement with Novy Systems Inc with the Railgun accelerators being identical to the Novy Quik30 accelerators.

Became DGR Technologies Inc. in 1994, there are two domains cached by the internet archive, both point to the same site, or sites with similar info, one for Bottom Line Distribution called Bottom Line Online (blol.com), and one for DGR (drg.com) that links to pages on blol.com.

Microtech International Inc. / MassTech International, Inc.

158 Commerce St, East Haven, CT 06512 (source MW 1990.02, Byte 1992.02)

MicroConversion

MicroMac

In the mid-late 90s as other accelertor vendors closed down, MicroMac bought some of their boards and designs, rebranding and selling boards by DiiMO, Dove, Harris, and Mobius (source MacUser 1997.07)

Mobius

Network Spacialties

NewLife / Newbridge Microsystems

603 March Rd. Kanata, Ontario, Canada, K2K 2M5 (source MW 1990.02, Byte 1992.02)

I was able to meet with Lincoln Henthorn the general manager and later the company president, and he provided me with boxes of advertisements, manuals, and diskettes to use as source material that I have added to my site.

Novy Systems

1862 Fern Palm Dr. Edgewater, FL 32141 (source MW 1990.02)

Radius, Inc

1710 Fortune Dr. San Jose, CA 95131 (source MW 1990.02)

Ryad

Siclone Sales and Engineering Corp. (1988 to 1991)

Located at 1169 Borregas Ave. Sunnyvale, CA 94089 (source MW 1989.03).

In fall of 1991 Siclone Sales and Engineering went bankrupt and Applied Engineering took over their product line (MacWorld 1991.08)

Spectra Micro Development

Address: P.O. Box 41795, Tucson, AZ (source MW 1990.02)

Sonnet

SuperMac Technology

Address: 485 Potrero Ave., Sunnyvale, CA 94086 (source MW 1990.02)

Bought by SuperMac’s parent SMS in 87, Levco and supermac merge october 87

Technology Works / TechWorks

4030 Braker Lane W, Suite 350, Austin, TX 78759 (source Byte 1992.02)

Total Systems Integration (TSI) (… to 1993)

  • 99W. Tenth Ave, Eugene, Or 97401 (source MW 1990.02)
  • 1720 Willow Creek Cir. Eugene, OR 97402. (source Byte 1992.02)

Total Systems Integration appears to have had a licensing agreement with Novy Systems Inc for the TSI-020, and possibly for their Gemini 020 and Gemini 030 cards.

MacWeek June 28th 1993, page 64. Announcement Total Systems Integration (TSI) has filed for chapter 7 bankruptcy protection.

Quesse

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.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.