Connection Speed Comparison Table

Apple Desktop Bus (ADB) 0.00125 MB/Sec (0.01Mb/Sec)
Serial 0.014 MB/Sec.
Parallel (Standard) 0.112 MB/Sec.
USB - Low Speed 0.1875 MB/Sec (1.5Mb/Sec)
Macintosh 8 Pin Mini DIN Serial 0.225 MB/Sec (1.8Mb/Sec)
USB - High Speed 1.5 MB/Sec (12Mb/Sec)
ECP/EPP Parallel Port 3.0 MB/Sec
IDE 3.3 - 16.7 MB/Sec
SCSI-1 5.0 MB/Sec
SCSI-2 (Fast SCSI, Fast Narrow SCSI) 10.0 MB/Sec
Fast Wide SCSI (Wide SCSI) 20.0 MB/Sec
Ultra SCSI (SCSI-3, Fast-20, Ultra Narrow) 20.0 MB/Sec
UltraIDE 33.0 MB/Sec
Wide Ultra SCSI (Fast Wide 20) 40.0 MB/Sec
Ultra2 SCSI 40.0 MB/Sec
IEEE-1394 12.5 - 50 MB/Sec (100-400Mb/Sec)
Wide Ultra2 SCSI 80.0 MB/Sec
Ultra3 SCSI 80.0 MB/Sec
Wide Ultra3 SCSI 160 MB/Sec
FC-AL Fiber Channel 100-400 MB/Sec

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