Thunderbolt 2
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Max Speed
20.00 Gbps
Max Resolution
4K@60Hz
Power Delivery
10W
Released
2013
Aggregated TB1's two 10 Gbps channels into a single 20 Gbps stream for 4K video. Still used Mini DisplayPort. The standard on 2013-2015 Mac Pro and MacBook Pro.
Bandwidth
20 Gbps
Power Delivery
10W
Capabilities
Data
✓
Video
✓
Audio
✓
Power
✓
Ethernet
✓
Future-Proof Analysis
Obsolete Mini DP connector. TB2 docks work with TB2-only Macs but no new products support it.
Compatible Connectors
Speed Benchmarks
| Scenario | File Size | Theoretical | Realistic |
|---|---|---|---|
| Transfer a 1GB file | 1.00 GB | 0.4s | 0.4s |
| Transfer a 2GB photo album | 2.00 GB | 0.8s | 0.9s |
| Transfer a 10GB movie | 10.00 GB | 4.0s | 4.4s |
| Transfer a 25GB game install | 25.00 GB | 10.0s | 11.0s |
| Transfer a 50GB backup | 50.00 GB | 20.0s | 22.0s |
| Transfer a 100GB project | 100.00 GB | 40.0s | 44.0s |
| Transfer a 250GB backup archive | 250.00 GB | 100.0s | 110.0s |
| Transfer a 500GB drive clone | 500.00 GB | 200.0s | 220.0s |
| Transfer a 1TB drive image | 1000.00 GB | 400.0s | 440.0s |