Many camcorders and action cameras use a 4-pole 3.5mm connector to output composite video plus stereo audio on a single cable, splitting to three RCA connectors (yellow, white, red) via a breakout cable.
| Pin | Name | Function | Type |
|---|---|---|---|
| T | Tip | Composite video signal | ADC |
| R1 | Ring 1 | Left audio channel | ADC |
| R2 | Ring 2 | Right audio channel | ADC |
| S | Sleeve | Ground / common | GND |
Many camcorders and action cameras use a 4-pole 3.5mm connector to output composite video plus stereo audio on a single cable, splitting to three RCA connectors (yellow, white, red) via a breakout cable.