Adaptec AHA-2940UW PCI Ultra Wide SCSI host adapter card — MAC firmware variant (sticker: AHA-2940UWPI MAC, part 945400-01 D), date code 1998. Pulled from a working system — was working when removed.
32-bit PCI, Ultra Wide SCSI 16-bit up to 40 MB/s, backward compatible with narrow 8-bit devices.
Connectors: 68-pin internal high-density, 50-pin internal header, 68-pin external connector on the bracket, plus drive-activity LED header. Adaptec AIC-7880 controller chip, on-board firmware v3.0 with SCSISelect utility.
Works in older PCI PCs and PCI Power Macs — great for retro builds or recovering data from old SCSI hard drives, CD-ROMs, scanners, tape drives, and audio gear.
Card only, as pictured.