Easy to Use, Plug and Play: Wired connection and no drivers needed. Simply plug it to the PC or GameSir X1, it will be automatically recognized and ready to use. Mechanical Blue Switches: 34 keys professional mechanical blue switches, No conflicts with 4 side keys are fully programmable to any hotkey, key combination and macro for fast command. Optimized Key Functions: Turn on the arrow key mode to enjoy the secondary key function plan for gaming. Specifically for PUBG Fortnite battle royale games!