Connector: Stereo 3.5 mm to DB9 Female Serial Port.Fully shielded to prevent unwanted EMI/RFI interference.Generic Serial Transfer Cable For Devices,Primarily used to transfer Serial Data back and forth from Small devices.The Velocity -232 adapter leverages your DB9 or 3.5mm stereo audio cable to run 3-conductor -232 control signals between your control unit and your video display. Fully molded DB9 and 3.5mm connectors strain relief. This adapter is Perfect for with computers, projectors, and any control unit/display requiring 3-conductor -232 serial control.Wiring Schematic: DB9 Connector 3.5mmPin 1-6-7-8Pin 2 Tip - LeftPin 3 Ring - RightPin 4Pin 5 Shield - GroundPin 9Cable Length: 6 feetColor: BlackMaterial: plasticPackage Contents: 1 * Audio/Video CableOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.