Optical Key : Q/W/E/R/A/S/D/F Optic Switch Optical Key Response：0.2ms Hotkey：Multimedia hotkey Backlit：Neon Glare Gaming Keycaps：Silicon Keycaps Water-Resistant：Double Secured Space-Bar: Screw Enhanced Connector: USB Cable Length : 1.8m System Requirements: Windows XP/ Vista/ 7/ 8 /8.1 / 10 or later