1. The only applicable motherboard has a USB2.0 9-pin socket and no USB3.0 19-pin socket, the chassis has a USB3.0 19P jumper connector.2. Motherboard USB2.0 9-pin to USB3.0 19P jumper connector.3. Connect the adapter to the USB2.0 9-pin socket of the motherboard, and then insert the 19P cable on the front of the chassis into the 19-pin connector socket.4. It should be that only USB2.0 rate is available.5. Made of high-quality plastic, durable, light in weight, comfortable, and can be used for a long time.Colour:blackMaterial:plasticPackage Contents:1 x Motherboard CableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.