| SCSI-Standard | Leistung | interne Busbreite | Kabellänge |
|---|---|---|---|
| SCSI-1 | 5 MB/Sek. | 8 bit SCSI bus | 6 Meter |
| SCSI-2 | 5 MB/Sek. | 8 bit SCSI bus | 6 Meter |
| SCSI-2 Fast | 10 MB/Sek. | 8 bit SCSI bus | 3 Meter |
| SCSI-2 Fast Wide | 20 MB/Sek. | 16 bit SCSI bus | 3 Meter |
| SCSI Ultra | 20 MB/Sek. | 8 bit SCSI bus | 3 Meter |
| SCSI Ultra Wide | 40 MB/Sek. | 16 bit SCSI bus | 1,5 Meter |
| Ultra2 Narrow | 40 MB/Sek. | 8 bit SCSI bus | 12 Meter |
| Ultra2 Wide | 80 MB/Sek. | 16 bit SCSI bus | 12 Meter |
| Quelle: | Thomas Handschuch: Solaris 7 Systemadministration Springer-Verlag ISDN 3-540-63421-5 |