SATA II (3 Gbps)
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Max Speed
3.00 Gbps
Max Resolution
—
Power Delivery
—
Released
2004
Doubled SATA bandwidth to 3 Gbps (300 MB/s). Added Native Command Queuing (NCQ) for improved random I/O. Sufficient for spinning hard drives but bottlenecks SSDs.
Bandwidth
3 Gbps
Capabilities
Data
✓
Video
✗
Audio
✗
Power
✗
Ethernet
✗
Future-Proof Analysis
Bottlenecks even basic SATA SSDs. Only suitable for mechanical hard drives at this point.
Compatible Connectors
Speed Benchmarks
| Scenario | File Size | Theoretical | Realistic |
|---|---|---|---|
| Transfer a 1GB file | 1.00 GB | 2.7s | 3.2s |
| Transfer a 2GB photo album | 2.00 GB | 5.3s | 6.4s |
| Transfer a 10GB movie | 10.00 GB | 26.7s | 32.0s |
| Transfer a 25GB game install | 25.00 GB | 66.7s | 80.0s |
| Transfer a 50GB backup | 50.00 GB | 133.3s | 160.0s |
| Transfer a 100GB project | 100.00 GB | 266.7s | 320.0s |
| Transfer a 250GB backup archive | 250.00 GB | 666.7s | 800.0s |
| Transfer a 500GB drive clone | 500.00 GB | 1333.3s | 1600.0s |
| Transfer a 1TB drive image | 1000.00 GB | 2666.7s | 3200.0s |