The Havit HV-KB486L semi-mechanical gaming keyboard delivers a whole new typing and gaming experience! The keyboard is equipped with anti-ghosting keys, preventing conflicts when multiple keys are pressed simultaneously! Features: 8 RGB lighting modes 4 levels of backlight brightness This Semi-Mechanical Gaming Keyboard is plug & play, no driver needed Gold-plated USB interface ensures efficient and stable data transfer Usage: Press FN+Page UP to increase backlight brightness - 0%–33%–66%–100% (default), FN+Page Down to decrease backlight brightness - 100% (default)–66%–33%–0% 10 available breathing rate options Press Fn+”-” to slow down the breathing rate and Fn + “+” to speed up the breathing rate Multimedia Buttons Easily accessible multimedia buttons, Fn + F1-F12, provide multimedia controls for entertainment and email. Specifications: Anti-ghosting: Up to 20 keys Custom Backlight: Yes Backlight Type: RGB Cable Length: 1.8 m Keyboard Type: Membrane (semi-mechanical) Key Lifespan: 50,000,000 times