USB keyboard Material: 475 recycle 107, 108, 109, 112keys standard keyboard, waterproof design PS/2, USB, USB keyboard Material: 475 recycle107, 108, 109, 112keys standard keyboard, waterproof design PS/2, USB, U+P ports available Multiple language versions available High quality membrane tactile key switch Compatible with Windows 98/2000/NT/ME/XP/VistaOperation life: 30,000,000 times Power ...