Tag: termination power

3 matching upgrades

Showing 3 products.

StatusProductWhat it doesCompatibilityLinks
Sold outChecked Jul 24, 2026A2SCSI-A03by GGLABS
scsiapple ii slotactive terminationtermination powerromprodosreplica

Recreates Apple's Revision C SCSI card with termination power and onboard active termination for improved drive compatibility.

The GGLABS Tindie store says the seller is taking a break and offers a return notification rather than a current order path. The project page provides software and technical material, but says parts of its pseudo-DMA and IIgs-mode schematic documentation remain incomplete.

Sources
  • Apple IIe Exact model
  • Apple IIgs Exact model
Tindie product pageProject documentation and software
AvailableChecked Jul 24, 2026Clipper Plusby Joe's Computer Museum
scsiinternal storagetermination poweradapter

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.

Sources
  • Macintosh Plus Exact model
Clipper Plus product page
AvailableChecked Jul 24, 2026Quadra Stepper SCSI Riderby Infinity Products
scsidb25adapterbluescsitermination powerkit

Extends a Macintosh rear DB-25 SCSI port so a DB-25 BlueSCSI can connect with usable clearance.

Both kit and assembled configurations had a live Add to Cart control on 2026-07-24. A BlueSCSI device is not included.

Sources
  • Macintosh external DB-25 SCSI Bus/interface
Quadra Stepper product pageAssembly instructions