B314 USB KEYBOARD LIGHT STRIKE GAMING NEON GLARE BLOODY A4 TECH World’s First Lightning Speed Mechanical Switch Innovative LK optical switch technology uses optical detection that removes all input lag which is able to obtain zero digital latency reacting with a speed of 0.2ms key response. Optical Key : W/A/S/D Optic Switch Optical Key Response：0.2ms Hotkey：Multimedia hotkey Backlit：Neon Glare Gaming Keycaps：4 ABS 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 SKU: 30.1056 Categories: Gaming, Gaming & Mechanical Keyboards, Gaming Keyboards, Keyboards, Peripherals