Usage Tips:Made of durable material, high performance. High speed transfer data and charge Plug and play, no drivers or power needed. This adapter cable can convert the usb 3.1 20pin pin plug into a USB3.0-20pin female socket. Specification: Type: Adapter Cable Color: Black Length: 20cm Connector1: USB 3.0 Front Panel Header Connector2: USB 3.1 Front Panel Header Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 1-3cm differences due to manual measurement. 3. The computer must have a interface as shown picture to use. Note: 1.No retail package. 2.Please allow 0-1cm error due to manual measurement. plz make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package included: 1 x Adapter cable