FireWire 400 (IEEE 1394a)
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Max Speed
0.40 Gbps
Max Resolution
—
Power Delivery
45W
Released
1995
Apple-championed 400 Mbps interface predating USB 2.0. Sustained throughput and peer-to-peer topology made it the standard for DV video and pro audio.
Bandwidth
400 Mbps
Power Delivery
45W
Capabilities
Data
✓
Video
✓
Audio
✓
Power
✓
Ethernet
✗
Future-Proof Analysis
Obsolete. Only needed for legacy DV tape capture and older audio interfaces. USB 2.0+ replaced it everywhere.
Compatible Connectors
Cables
Speed Benchmarks
| Scenario | File Size | Theoretical | Realistic |
|---|---|---|---|
| Transfer a 1GB file | 1.00 GB | 20.0s | 24.0s |
| Transfer a 2GB photo album | 2.00 GB | 40.0s | 48.0s |
| Transfer a 10GB movie | 10.00 GB | 200.0s | 240.0s |
| Transfer a 25GB game install | 25.00 GB | 500.0s | 600.0s |
| Transfer a 50GB backup | 50.00 GB | 1000.0s | 1200.0s |