Interface support: US.System support:Windows® Vista/XP x64/ XP/ 2003/2000, Macintosh with OS X 10.2.8+

Number of buttons:Six (Left, Right, Middle button, Flip 3D, Smart IE search, and Turbo button).Resolution (dpi): 1600 dpi laser engine.

System Requirements: PC/ Pentium 233 compatible or higher , Windows® Vista/ XP x64/XP /2003/2000 , Macintosh with OS X 10.2.8 or later  Available USB port.