Common Data Transfer Rates

Theoretical Max	Theoretical Max	Practical Rate
Transfer Type	(MB/Sec)	(GB/Hr)	(MB/Sec)
Fast Ethernet	12.5	45	~ 9
Gigabit Ethernet	125	450	~ 90
Ultra Wide SCSI	40	144	~ 35
Ultra160 SCSI	160	576	~ 150
Fibre Channel (1 Gbit)	125	450	~ 100
Fibre Channel (2 Gbit)	250	900	~ 200
Fibre Channel (4 Gbit)	425	1530	~ 340
SATA 1	150	540	~ 143
SATA 2	300	1080	~ 286
SATA 3	600	2160	~ 572
SAS 1	300	1080	??
SAS 2	600	2160	??
Type	Rate	Rate
1GbE	1 Gb/s	125 MB/s
10GbE	10 Gb/s	1.25 GB/s
802.11g	54 Mb/s	6.75 MB/s
802.11n	600 Mb/s	75 MB/s

Comprehensive list here