USB four port Hub Add four Hi-speed USB ports to your notebook or PC Active powered to support all USB devices Power: bus power ( 5 V DC.500mA); over current protection function Supporting both full speed (12Mbps) and low speed (480Mbps) Most suitable for notebook, PC, PAD, handheld PC Compatible: Window XP, 2000, Me, 98SE, 98, 9.1, 9.0, 8.6, Mac OSX, 10.1