Serial ATA
Comparison with other buses
Columns: Name | Raw bandwidth (Mbit/s) | Transfer speed (MB/s) | Max. cable length (m) | Power provided | Devices per channel
eSATA | 3000 | 300 | 2 with eSATA HBA (1 with passive adapter) | No | 1 (15 with port multiplier ) | eSATAp | 3000 | 300 | 2 with eSATA HBA (1 with passive adapter) | 5V/12V | 1 (15 with port multiplier ) | SATA revision 3.0 | 6000 | 600 | 1 | No | 1 (15 with port multiplier ) | SATA revision 2.0 | 3000 | 300 | 1 | No | 1 (15 with port multiplier ) | SATA revision 1.0 | 1500 | 150 | 1 | No | 1 per line | PATA (IDE) 133 | 1064 | 133.5 | 0.46 (18in) | 5 V (44-pin for 2.5" drives no otherwise) | 2 | SAS 600 | 6000 | 600 | 10 | No | 1 (>65k with expanders) | 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) | SCSI Ultra-320 | 2560 | 320 | 12 | No | 15 (plus the Host Bus Adapter/Host) | Fibre Channel over optic fibre | 10520 | 1,000 | 2–50,000 | No | 126 (16,777,216 with switches) | Fibre Channel over copper cable | 4000 | 400 | 12 | No | 126 (16,777,216 with switches) | InfiniBand Quad Rate | 10000 | 1,000 | 5(copper) <10,000(fiber) | No | 1 with point to point Many with switched fabric | Thunderbolt | 10000 | 1,250 | 3 (copper) | 10W | 7