Connect the computer motherboard USB 2.0 9-pin extension wiring, one male and one female extension function. This cable is a pair of extended connections that not change the original function of the motherboard. Double-group shielded wire design can reduce interference between wires. The pins are defined according to the standard USB 9-pin, with anti-misplugging function. When inserting, align the empty pin and insert it onto the motherboard. When pulling out, please hold the black shell and pull it out. Do not pull the wire out while holding it. This can easily cause wire breakage due to incorrect operation. Please be careful. Note: If your chassis panel is AC97, after adding an extension cable, it still be AC97; If your panel is HD audio and an extension cable is added, it still be HD audio, so this cable has no transfer function and not change the audio type of the chassis panel. Reminder: The audio pins of some machines are generally not standard pins, so they cannot be used. Please note. Colour: Black Material: PVC+tinned copper wire Package Contents: 1 x USB 9Pin Adapter Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.