Serial ATA Comparison with other buses Comparison with other buses

| Name_ | Raw_bandwidth_Mbit_s | Transfer_speed_MB_s | Max_cable_length_m | Power_provided | Devices_per_channel |
|---|---|---|---|---|---|
| SAS 300 | 3000 | 300 | 10 | No | 1 (>65k with expanders) |
| SAS 150 | 1500 | 150 | 10 | No | 1 (>65k with expanders) |
| IEEE 1394 (FireWire) 3200 | 3144 | 393 | 100 (more with special cables) | 15W, 12–25V | 63 (with hub) |
| IEEE 1394 (FireWire) 800 | 786 | 98.25 | 100 | 15W, 12–25V | 63 (with hub) |
| IEEE 1394 (FireWire) 400 | 393 | 49.13 | 4.5 | 15W, 12–25V | 63 (with hub) |
| USB 3.1 | 10000 | 1250 | 3 | 4.5W, 5V | 127 (with hub) |
| USB 2.0 | 480 | 60 | 5 | 2.5W, 5V | 127 (with hub) |
| USB 1.0 | 12 | 1.5 | 3 | Yes | 127 (with hub) |
| SCSI Ultra-640 | 5120 | 640 | 12 | No | 15 (plus the Host Bus Adapter/Host) |