perfect set. goodlooking and great function. Keyboard features: Dimension450x157x18mmKeycaps107 keycapsNet Weight600gWorking ModeMembrane switchWorking VoltDC+5v (error±0.25)Working Current100MAPortPS/2 OR USBSystem RequirementsWindows98,ME,2000,XP,2003,X64,IBM1>Notebook type keycap.2> X-structure design, comfortable hand feeling. 3> Fashionable shape, built-in anti-radiation steel plate. 4> More ...