Mouse GENIUS USB NS+ 220 Laser U$s 11.71

Interface support PS/2 , USB System support Windows Vista/XP x64/ XP/ 2003/2000 Macintosh with OS X 10.2.8+ Number of buttons Three (Left, Right, Middle button with wheel ) Resolution (dpi) 1600/800 dpi laser engine System Requirements: IBM PC/ Pentium 233 compatible or higher Windows Vista/XP/XP x64/2003/2000 Mac OS X 10.2.8 or later