SF Cable, DB9 Female to 3.5mm Serial Cable (6 Feet)
6ft DB9 Female to 3.5mm Serial Cable Generic Serial Transfer Cable For Devices Stereo 3.5 mm Jack to DB9-F Serial Port. Primarily used to transfer Serial Data back and forth from Small devices. Wiring Schematic DB9 TRS Connector 3.5mm Pin 1-6-7-8 Pin 2 Tip - Left Pin 3 Ring - Right Pin 4 Pin 5 Shield - Ground Pin 9