Portable cute USB hub provides four usb 2.0 high-speed ports, no driverand supports hot plug and play. The system support: Win95/98/Me/2000/XP,Linux 2.4 and Macos 8.5 or above version. It supports surge voltage and instaneous current protection function. It's so tiny that easy to take along. We can help you imprint your logo on it. Four color for you to choose.