75% Percent Mechanical Keyboard Wired - Compact gaming keyboard retains essential function and arrow keys for achieving more keyboard features while freeing up desk space. And it comes with a durable aluminum CNC volume knob. You can rotate the knob to adjust the volume quickly. An excellent setup for your desk. Gasket Mount Mechanical Keyboard - This custom keyboard features built-in multiple sound absorbing layers, including IXPE switch dampener pad, 2 layers of thicker sound-absorbing foams, silicone dampener pad, which can effectively reduce the vibrate and noise of the keys, and provide creamy sound, natural and clear feedback, no more cavities noise. Hot-Swappable Linear Switch - R75 mechanical keyboard adopts silver switch Pro with shorter key travel and port surrounding to provide a fast and stable typing experience. These linear switches offer a creamy sound, rapid response, and an exceptionally smooth keystroke feel, providing endless typing enjoyment.