Super-Combo15 Programable Gaming Keyboard/G800V Key Feature Advanced 8-key rollover to avoid ghost key Ideal for all online game and console game, such as CS, DOTA, World of warcraft, etc. Super-Combo15 Custom macros with 15 fully programmable keys Perform stunts to win the games effortlessly Disable Windows key during games Avoid accidentally pressing the Windows key on keyboard and improve your gaming experience 1 Click to shift 5 modes No driver required to shift modes with dual-color indicator Response time up to 1 ms / 1000 Hz 8 Times faster than normal USB keyboard (8 ms/ 125 Hz) 96K on-board memory No driver/ software required to perform custom macros Spillproof structure Completely sealed membrane and drain holes ensures excellent spillproof result One-touch?hotkeys Quick access to multifunction High durability silicone keycaps Confortable keystroke feel and 20,000,000 cycle lifetime Wide wristpad to comfortable your hands Nice experience for your hands and operation Brief Specification Package Include: Keyboard CD(Software; User Manual) System Requirements Windows 2000/ XP/ 2003/ Vista/ Windows 7