Terms and Terminology

By Editor on May 28, 2011

STA Terms

Bus Speed, MBytes/Sec. Max. Bus Width, bits  

Max. Bus Lengths, Meters (1)

Max. Device Support
Single-ended LVD HVD
SCSI-1(2) 5 8 6 (3) 25 8
Fast SCSI (2) 10 8 3 (3) 25 8
Fast Wide SCSI 20 16 3 (3) 25 16
Ultra SCSI (2) 20 8 1.5 (3) 25 8
Ultra SCSI (2) 20 8 3 - - 4
Wide Ultra SCSI 40 16 - (3) 25 16
Wide Ultra SCSI 40 16 1.5 - - 8
Wide Ultra SCSI 40 16 3 - - 4
Ultra2 SCSI (2,4) 40 8 (4) 12 25 8
Wide Ultra2 SCSI (4) 80 16 (4) 12 25 16
Ultra3 SCSI or Ultra160 SCSI (6) 160 16 (4) 12 (5) 16
Ultra320 SCSI (6) 320 16 (4) 12 (5) 16