SCSI device stuff
| Name | Length(m) | Speed(Mbps) | Devices |
| SCSI-1 | 6 | 5 | 8 |
| SCSI-2 | 6 | 5-10 | 8 or 16 |
| Fast SCSI-2 | 3 | 10-20 | 8 |
| Wide SCSI-2 | 3 | 20 | 16 |
| Fast Wide SCSI-2 | 3 | 20 | 16 |
| Ultra SCSI-3 8-bit | 1.5 | 20 | 8 |
| Ultra SCSI-3 16-bit | 1.5 | 40 | 16 |
| Ultra-2 SCSI | 12 | 40 | 8 |
| Wide Ultra-2 SCSI | 12 | 80 | 16 |
| Ultra-3 (Ultra160/m) SCSI | 12 | 160 | 16 |
