USB 1.1
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Max Speed
0.01 Gbps
Max Resolution
—
Power Delivery
2W
Released
1998
Refined USB 1.0 with improved reliability and interrupt/isochronous transfer support. The version that launched USB into mainstream adoption for keyboards, mice, and printers.
Bandwidth
10 Mbps
Power Delivery
2W
Capabilities
Data
✓
Video
✗
Audio
✗
Power
✓
Ethernet
✗
Future-Proof Analysis
Obsolete for data transfer. Some ultra-low-power IoT devices still use Full Speed mode inherited from USB 1.1.
Compatible Connectors
Speed Benchmarks
| Scenario | File Size | Theoretical | Realistic |
|---|---|---|---|
| Transfer a 1GB file | 1.00 GB | 666.7s | 833.3s |
| Transfer a 2GB photo album | 2.00 GB | 1333.3s | 1666.7s |