I/O Maximum Speeds

By Protocol= MBps (MegaBytes per second)= MB/sec

10 MB Ethernet = 1.28 MB/sec.
100 MB Ethernet = 12.80 MB/sec.
1 GB Ethernet = 131.00 MB/sec.
IEEE 802.11 WLAN = 0.25 MB/sec
IEEE 802.11a WLAN= 6.75 MB/sec
IEEE 802.11b WLAN= 1.38 MB/sec
IEEE 802.11g WLAN = 6.75 MB/sec
IEEE 802.15 WLAN (Bluetooth)= 0.25 MB/sec
Standard Parallel= 0.15 MB/sec.
Enhanced Parallel (ECP and EPP)= 3.00 MB/sec.
USB = 1.50 MB/sec.
USB 2.0 = 60.00 MB/sec
IDE/EIDE PIO Mode 0 = 3.30 MB/sec.
IDE/EIDE PIO Mode 1 = 5.20 MB/sec.
IDE/EIDE PIO Mode 2= 8.30 MB/sec.
IDE/EIDE PIO Mode 3 = 11.10 MB/sec.
IDE/EIDE PIO Mode 4= 16.70 MB/sec.
UDMA/33= 33.00 MB/sec.
UDMA/66= 66.00 MB/sec.
ATA 100= 100.00 MB/sec.
ATA 133= 133.00 MB/sec.
Serial ATA = 150.00 MB/sec.
Serial ATA II= 300.00 MB/sec.
Serial ATA III = 600.00 MB/sec.
IEEE 1394 S100 (Firewire) = 8.00 MB/sec
IEEE 1394 S200 (Firewire)= 24.58 MB/sec
IEEE 1394 S400 (Firewire) = 49.15 MB/sec
IEEE 1394b S800 (Firewire) = 100.00 MB/sec
IEEE 1394b S1600 (Firewire) = 150.00 MB/sec
IEEE 1394b S3200 (Firewire)= 300.00 MB/sec
IrDA 1.1 = 1.50 MB/sec
SCSI 1 = 5.00 MB/sec.
SCSI 2 = 10.00 MB/sec.
SCSI 2 Wide = 20.00 MB/sec.
Ultra SCSI = 20.00 MB/sec.
Ultra Wide SCSI = 40.00 MB/sec.
Ultra 2 SCSI = 80.00 MB/sec.
Ultra 160 SCSI = 160.00 MB/sec.
Ultra 320 SCSI = 320.00 MB/sec.
Serial Storage Architecture
(SSA) = 20.00 - 40.00 MB/sec.
Fiber Channel (FC-AL)= 100.00 - 200.00 MB/sec.
ISA-8 = 8.30 MB/sec
ISA-16= 16.60 MB/sec
EISA = 33.33 MB/sec
PCI 2.0 = 133 MB/sec
PCI 2.1 = 266 MB/sec
PCI 2.2 = 532 MB/sec
PCI-X = 1066 MB/sec
AGP 1X = 266 MB/sec
AGP 2X = 533 MB/sec
AGP 4X = 1066 MB/sec
AGP 8X = 2133 MB/sec
PCMCIA = 20 MB/sec
PC Card = 132 MB/sec

Mbps (megabits per second) is not to be confused with MBps (megabytes per second). Mbps stands for millions of bits per second or megabits per second and is a measure of bandwidth whereas Megabytes per second (MBps) describes a unit of data transfer to and from a computer storage device.