The Redragon K557 is a detachable mechanical gaming keyboard. 8 PCS additional mechanical switches come with the package for Gamer DIY Features： 100% Anti-Ghosting 104，double-shot injection molded keycaps are (RGB) LED backlit. Player can simultaneously click multiple function keys without program error. All the keys are controlled by an independent switch in ways that ensures fast response and extraordinary gaming experience for our players. Customized mechanical blue switches make it possible for 50 million times keystrokes and fast responsiveness. Mechanical keys can provide all-around gaming experience for players with medium resistance, nice click, and quick feedback. RGB adjustable LED backlights offer 6 backlight themes and 18 backlight models. Player can press ‘FN’+ Ins, Home, PgUp, Del, End and PgDn to change as they like. Support WinXP/Vista/Win7/Win8/Win10 Keyboard Setting: 6 themes switchable backlight colors 18 models backlight colors 4 LED brightness levels 104 standard anti-Ghosting keys All non-conflict keys; 12 multimedia keys WIN keys can be disabled when gaming; laser engraved chiclet keycaps Technical Specifications: Connector: Gold-plated USB LED-backlit color: Choose between seven colors Keyboard Size: 17.2x6.78x1.5 inches Keyboard Weight: 2.8 pounds Multimedia keys: 12 Material: Aluminum alloy +ABS