1) 4 port USB hub,USB1.1 and USB2.0.

2) hot plug and play.

3) Supporting both full speed (12Mbps) and low speed (480Mbps).
4) Most suitable for notebook, PC, PAD, handheld PC, etc.
5) Compatible: Window XP, 2000, Me, 98SE, 98, 9.1, 9.0, 8.6, Mac OSX, 10.1.