Tag: internal storage

Adds an internal SCSI connection and termination power to a Macintosh Plus by clipping over its SCSI controller chip.

The JCM page showed 18 units in stock on 2026-07-24. Installation requires opening the compact Macintosh, removing and reinstalling its logic board, routing a SCSI cable through a tight chassis gap, and supplying a separate SCSI device.

Replaces an Atari ACSI hard disk with SD or microSD media in external, direct-plug, or internal Mega ST-family forms.

The internal, cased external, acrylic-case, and Mini pages exposed order paths on 2026-07-27. No form includes storage media. The current grey cased and internal revisions use USB-C, while the acrylic and Mini pages specify Micro-USB; a 5 V phone charger is not supplied. The cased units need a separately sold DB19-to-IDC20 ACSI cable, the Mini plugs directly into ACSI, and the internal unit needs a separately sold Mega ST or Mega STE adapter. The current cased page contains an older Micro-USB FAQ despite its revision notice saying USB-C. Older TOS versions can be slower or unsafe with DOS-compatible media, and some Atari DMA circuits or modern high-capacity card pairs need the documented troubleshooting or clock-capacitor fix. The optional DUCKBILL flasher requires a direct, bidirectional PC parallel port and Windows XP DOS console.

Adds an internal CompactFlash hard drive to the 1088XEL through its MPBI expansion interface.

Both variants have public fabrication material, and the Rapidus board adds KiCad source. Use only the specified Texas Instruments 74F-series logic. The interface needs flashjazzcat's special 1088XEL Ultimate 1MB BIOS, replacing the original SIDE PBI and loader. Keep the IDE cable under 10 inches when practical. The maker does not guarantee every CompactFlash card and reports the best results with genuine SanDisk cards rated at 30 MB/s or less.