1. The only applicable motherboard has a USB2.0 9-pin socket and no USB3.0 19-pin socket, but 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 noted that only USB2.0 transfer rate is available.5. Made of high-quality plastic, durable, light in weight, very comCompatible Withtable, and can be used Compatible With a long time.Specification:Product size: 39x30x6mm/1.54x1.18x0.24inProduct weight: 12gColour: blackMaterial: plasticPackage Contents:1 x 9 Pin ExtenderOnly the above package content, other products are not included.Note: Light shooting 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.