Features: The USB extension cable supports phone charging and data transmission sync; This USB3.0 extension cable is suitable for daily use and office work. The extension cable has its own ON OFF switch, which can control the USB devices as you want; It can be used for USB3.0 interface equipment and also compatible with USB 2.0 and USB 1.1 equipment; Suitable for computers, USB chargers, and other USB interface devices; Specifications: Material:Plastic Color:Black, Length:Approx.0.1m/3.94in,0.3m/11.81in,0.5m/19.7in,1m/39.37in,1.5m/59.06in,2m/78.74in;(Optional) Package Includes: 1x USB3.0 Extension Cord note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.