Pink/Green Audio Splitter Cable
part number 6021373
Converts a 4-pin microphone/headset plug to a two pin microphone and two pin headset connector.
This splitter cable is handy if you want to plug a microphone into the HD PVR Pro 60. You would plug the Pink/Green adapter into the 'headset' jack on the front of the HD PVR Pro 60, and then plug your microphone into the Pink 3.5mm end.
A 4-pin 3.5mm jack normally has this pinout: tip is left audio out, next is right audio out, then ground and the last ring is the microphone.