3G-SDI (SMPTE 424M) carries single-link 1080p60 at 3 Gbps over 75-ohm BNC cable. It is the most common SDI standard in production environments, supporting 1080i and 1080p up to 60fps.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | Center Pin | 3G-SDI serial digital video signal | BUS |
| 2 | Outer Shell | Ground / shield / 75 ohm return | GND |