Ultra ATA/100 has a maximum burst transfer rate of 100 megabytes per second (MB/s), or 800 megabits per second (Mb/s).
Ultra 160 SCSI has a maximum sustained transfer rate of 160 megabytes per second (MB/s), or 1280 megabits per second (Mb/s).
IEEE 1394 has a maximum sustained transfer rate of 50 megabytes per second (MB/s), or 400 megabits per second (Mb/s).
USB 2.0 has a maximum sustained transfer rate of 60 megabytes per second (MB/s), or 480 megabits per second (Mb/s).
USB 1.1 at high speed has a maximum sustained transfer rate of 1.5 megabytes per second (MB/s), or 12 megabits per second (Mb/s).