1.Elegant appearance design,reasonable interface layout, no interference. 2.USB3.0 interface supports hot insertion,plug and play;simple to use and easy to carry. 3.Supports overload voltage and transient current protection functions,effectively protecting the connected devices and the HUB itself. 4.Complies with USB 3.0 specifications,supports high-speed 5Gbps bandwidth transmission,and is backward compatible with USB2.0/USB1.1. 5.Driver-free support for XP/Vista/7/8 & with USB support. Product name:Aluminum alloy 7-port USB3.0 high-speed hub Product interface:USB3.0 B-type male port/DC power supply/USB3.0 A-type female port Product application:The hub can be used for USB devices such as mobile hard disks,U disks,card ,mobile phones,digital cameras,high-resolution cameras,digital video cameras,and multi-channel audio.It supports simultaneous connection of multiple USB3.0 high-speed devices and stable transmission of average-speed bandwidth. Colour:Silver Material:Aluminum Alloy Package Contents: 1 x 7-port USB3.0 high-speed hub 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.