PC GAMING KEYBOARD COMPATIBILTY: Windows 10, Windows 8, Windows 7, Windows Vista, or Windows XP, Limited Mac OS keyboard support. BACKLIT ANTI GHOSTING KEYBOARD; The Redragon K509 has 25 Conflict Free (n-Key Rollover); 12 multimedia keys. Comes with Full numeric keypad and a corrosion free USB connector for a reliable connection. EGRONOMIC WATERPROOF DESIGN; The PC Gaming Keyboard is built to withstand the average liquid spill. There is more, the Keyboard is not only good for gaming it also has great ergonomics, keyboard legs to adjust the typing angle and a space saving design delivering a pure, fluid gaming experience. No matter how long you type or how intense your gaming marathons are, you are always comfortable. RGB LED BACKLIT GAMING KEYBOARD; K509 Redragon RGB LED Keyboard is a backlighted keyboard with 6 different Backlight Modes, Multiple Colors, 4 backlight brightness levels and adjustable breathing speed, the illumination can be completely turned off. QUIET LOW-PROFILE MECHANICAL FEEL GAMING KEYBOARD; 104 Key PC Gaming Keyboard with quiet low profile keys designed for longevity, durability and responsiveness. The keyboard features a solid ABS construction with precision engineered keycaps. The keyboard keys offer a mechanical keyboard feel with less resistance and a short key travel, they require less work to type and still deliver precise tactile feedback for a Flawless Gaming Performance.