Transfer rates of common PC interfaces

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  • The following varieties of SCSI are currently implemented:
    • SCSI-1: 4 MBps
    • SCSI-2: Same as SCSI-1 This is what most people mean when they refer to plain SCSI.
    • Wide SCSI: Uses a wider cable (168 cable lines to 68 pins) to support 16-bit transfers.
    • Fast SCSI: 10 MBps.
    • Fast Wide SCSI: 20 MBps.
    • Ultra SCSI: 20 MBps.
    • SCSI-3: 40 MBps. Also called Ultra Wide SCSI.
    • Ultra2 SCSI: 40 MBps.
    • Wide Ultra2 SCSI: 80 MBps.
  • PCI It can run at clock speeds of 33 or 66 MHz. At 32 bits and 33 MHz, it yields a throughput rate of 133 MBps.
  • EIDE between 4 and 16.6 MBps. There is also a new mode, called ATA-3 or Ultra ATA, that supports transfer rates of 33 MBps.
  • S-ATA Transfer rates for Serial ATA begin at 150MBps.

Cable Modem

up to 2 Mbps
potential bandwidth estimates range upwards of 30Mb/s

DSL

up to 32 Mbps downstream - 32 Kbps to over 1 Mbps upstream
128Kb/s and go up to 1.5Mb/s for most home users
  • T1 1.544 Mbps
  • T3 43 Mbps

OC

OC-1 = 51.85 Mbps
OC-3 = 155.52 Mbps
OC-12 = 622.08 Mbps
OC-24 = 1.244 Gbps
OC-48 = 2.488 Gbps
OC-192=9.952 Gbps