Interfaces:1 x USB - 4 PIN USB Type A, Connectivity Technology:Wired, Movement Resolution:3200 dpi, Features:Scrolling wheel, ambidextrous design, Avago 3310 sensor, 1.5 - 1.8mm lift-off distance, Interface:USB, Movement Detection Technology:Optical, Performance:Realtime sensitivity switching 400/800/1600/3200 dpi, 125/500/1000 reports per second, Compliant Standards:Plug and Play, OS Required:Apple MacOS X 10.2 or later, Microsoft Windows 2000/XP/Vista/7/8