Twin-Ax (Twinaxial) BNC carries two balanced conductors inside a single shield. Used for 10GBASE-T precursor, InfiniBand, and differential video signals where balanced transmission reduces noise.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | Signal A | Balanced signal positive | BUS |
| 2 | Signal B | Balanced signal negative | BUS |
| 3 | Shield | Common ground shield | GND |