USB The device is highly compatible Expanding 7 high-speed USB 3.0 terfaces for computers, supporting mice, keyboards, and USB drives M obile hard drives,printers,USB , card ,USB fans, anc other devices Stable c onnection More stable powe rsupply and usage Adapted to 12V4A power su upply, supports BC1.2 power supply protocol,Provide ma ximum power of 5V/2.4A for a single port, with fully loadec equipment not disconnected Each interface has switches Reasonably control the workin g status of each interface, and a reasonable distrib bution of interface spacing Colour:Photo Color Material:Aluminum Alloy Package Contents: 1x USB Hub DOck Only the above package content, other products are not included. Note: Light reflection 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.