... keys), panel mount 2) Integrated touchpad and numeric keypad; 3) Protruding full travel(2.0mm)keys with etched or laser engraved graphics, excellent tactile ... -4 Operation system - PS2: Win NT4, 98SE, 98ME, 2000, XP - USB: Win 98SE, 98ME, 2000, XP, Mac OS9 / OSX Reliability - MTBF ... Thickness: 32.10 mm More Photos Certifications Industrial metal keyboard with touch pad,function keys and number keypad