Color: silver Material: aluminum alloy Built-in USB cable. Individual power switches for the energy conscious, suitable for flash drive, digital camera, DV, etc. Compliant with: USB1.0: 1.5Mbps (Low-Speed) USB1.1: 12Mbps (Full-Speed) USB2.0: 480Mbps (High-Speed) Compatible System: 10/ 8/ 7/ Vista/ XP/2000 and for OS 10.1 Package Contents: 1 x USB 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. Features: Expand your computer's connectivity with this 4 port USB hub. Super compact and light weight. Hot plug and play USB device. LED indicator lights show which USB ports are in use at any given time.