I recently purchased a MacSD adapter to try out and see if it’s easier to use than my SCSI2SD adapters, after some experimentation I can say that it is definitely more flexible than the SCSI2SD, specifically the ability to assemble a set of volume images in a directory on your SD card as a drive. You can directly edit the volume files on your SD card using Basilisk II and other emulators and tools for quicker updates. It also allowed me to increase the number of ProDOS volumes for my Apple IIe card, unlike HD SC Setup which limited me to 2 ProDOS portions per drive, I was able to create 6 on a MacSD composite drive (likely more, but 6 is enough for now). You can also use the MacSD with Drive images (similar to SCSI2SD), floppy images and CD-ROM images.
Published December 29, 2020