This is a Fat Shark 3.5mm 4-Pin to 3 RCA Male AV Cable. This 3.9' long (1.2m) cable lets you record the video from your FPV headset by connecting the 90 degree 4-pin 3.5mm jack to the AV in/out port on your headset. Then simply connect the RCA cables to an external recording device to capture the action.