Products passed CE, FCC, and RoHS certificates Resolution: 800dpi OEM/ODM orders are accepted Key Specifications/Special Features:Products passed CE, FCC, and RoHS certificates Resolution: 800dpi OEM/ODM orders are accepted Switch key life: 3,000,000 times Compatible for Microsoft Windows 95/98/Me/NT/2000/XP/Vista Optional interface: PS/2, USB, and U, P Works on any surface except glass All ...