1,4 port USB 2.0 high speed hub 2,PU leather mouse pad 3,Retractable mouse pad 4,LED light backlight 5,1.1 and 2.0 usb hub Item No.X496NameUSB HUB mouse padHUB1.1 and 2.0 hub availableMouse padRetractable mouse padLEDBlue led backlightPowerUSB 5v/500mah1,Operating system:Win95 osR2/98SE/Me/2000/XP,Linux2.4andMac os8.5VASTA or highter2,Transfer rate:MAX speed480Mbps,MED speed12Mbps,MIN speed1. ...