Factory-lubricated mechanical be quiet! Black Tactile Switches offer speed, precision and accuracy with a clearly noticeable tactile actuation point 3 layers of foam for extra silent keystrokes High-quality PBT double-shot keycaps with translucent legends Aluminum 3D Media Wheel and 5 macro or multimedia keys Arched ARGB diffuser on each switch for bright and even per-key illumination Customizable ARGB LED bars at the top and on both sides for atmospheric lighting effects Support for hot-swappable 5-pin MX style switches Customize your Light Mount with the be quiet! IO Center software