? Outemu Blue Switches . Custom mechanical switches designed for longevity, responsiveness, and durability. Mechanical keys with medium resistance, audible click sound, and tactile feedback. ? Programable full RGB backlighting: You can program all of the keys to be the same color/what color you want with no driver needed. 18-mode RGB Backlighting and Color-Flashing Speed. Double-shot injection molded keycaps for crystal clear backlighting ? Anti-ghosting 84 Keys, N-key rollover. Allowing multi-keys to work simultaneously with high speed. Each key is controlled by independent switch, let you enjoy high-grade games with fast response ? Durability and Wide Compatibility. Made of top ABS and metal material, with matte-finish texture and gold plated USB connector, it is sturdy and robust. Compatible with Windows 10,Windows 8, Windows 7,Mac OS X, Windows XP, Windows VISTA. ? Key Shortcuts and Ergonomical design: Convenient Multi-media Keys Fn+F1~F12 Provides Windows Key lock for gaming, multimedia controls for entertainment, email and calculator. Provides Windows Key lock for gaming