Targus 3-Button Optical Notebook Mouse AMU36USZ The dual purpose ergonomic design is small enough for travel and big enough for comfortable desktop operation No software driver required, featuring true plug-and-play with hot-swap capability for ease of use, connects via 5ft. USB cord Includes cable tie for added cable management System Requirements  Windows 2000, XP, Windows Vista or Mac OS X (8.9 or above), USB port required