Interfaces:1 x USB - 4 PIN USB Type A, Buttons Qty:5, Interface:USB, Features:Scrolling wheel, rubber coating, Avago 3310 optical sensor, Connectivity Technology:Wired, Movement Resolution:3200 dpi, Performance:Realtime sensitivity switching 400/800/1600/3200 dpi, 125/500/1000 reports per second, Cable Length:2 m, Compliant Standards:Plug and Play, BSMI, FCC, RoHS, KCC, WEEE, OS Required:Apple MacOS X 10.2 or later, Microsoft Windows 2000/XP/Vista/7/8