Product description: 100% brand and high quality Color: Black Size:Standard size Package includes:1Pc 9 Pin Adapter Feature: 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 comfortable, and can be used for a long time. Note: The USB interface transferred from this device is only suitable for low-power devices such as U disk, keyboard, mouse, etc. Please allow 0-0.5cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!