Xenta mini usb20 hub transparent blue colour with led light indicator transfer speeds up to 480mbps support 4 usb devices at the same time usb powered compliant with usb version 20 and usb11 supports windows98 me 2000 nt xp vista mac os x and linux os over current detection and protection for each downstream port plug and play and hot swapping functions individual port overload protection user friendly and ergonomic design easy to carry