This is perhaps the most common audio-video plug used on FPV receivers and goggles. It's the 3.5mm size with a TRRS (Tip, Ring, Ring, Shank) contacts. It can be used to create custom A/V cables for ImmersionRC, FatShark, Flysight, and other brands that accept 3.5mm A/V phone plugs.
The plastic finger grip housing screws off to reveal the four connections. Adding your wire requires basic soldering skills. The connections can vary, but here's the pinout ID information for the most common ImmersionRC, FatShark, and Flysight cables.
1 (tip): Audio-1
2 (ring): Audio-2
3 (ring): Video
4 (shank): Ground
Note: Always confirm your equipment's required pinout by checking an existing cable.
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