Hardware
| Name | Busbreite in Bits | Anzahl von Geräten | MB/s | Anschluß | Max. Kabellänge |
|---|---|---|---|---|---|
| SCSI-1 | 8 | 7 | 5 | 50 polig LowDens | 6 m |
| SCSI-2
(alias) Fast SCSI, Narrow SCSI |
8 | 7 | 10 | 50 Pins HighDens | 3 m |
| SCSI-3
(alias) Ultra SCSI, Fast20 |
8 | 7 | 20 | 50 polig HighDens | 3 m |
| Ultra Wide
(alias) Fast SCSI-3 |
16 | 15 | 40 | 68 polig HighDens | 1.5 m |
| Ultra2 | 16 | 15 | 80 | 68 polig HighDens | 12 m |