4 Port Real USB 2.0 Hi-speed HUB Snow Man White 4 USB2.0 Port, add USB peripherals to your computer and save desktop space. It can support up to 480mbps, also compatible with USB1.1 (the speed is 12mbps). Compliant with USB 2.0 specification. Connects up to 2 delves without a power adapter. Support windowns 98, 2000, ME, XP, vista, Seven, Mac 9.1 Individual port over current protection. Indicator light status