CNC Aluminum Case: This is a high-quality aluminum case that has been individually machined and engraved Fully Programmable 16.8 Million RGB Lighting: Apart from the multiple color modes and animations that you would expect from a professional gaming keyboard. The GMMK PRO features per-key RGB lighting with an elegant side lighting panel. All fully customizable 5-PIN South Facing Modular PCB: The GMMK Pro is not only fully modular, but also fully hot-swappable. You can easily add and remove your favorite switches and keycaps and truly tailor this keyboard to your specific visual and tactical taste. You can also use the USB-C cable of your choice as well. All fully powered by a powerful 32-Bit ARM Processor Gasket Mounted Plate Design: The addition of the Gasket naturally dampens keystrokes for a unique haptic and acoustic experience Rotary Encoder: By default this rotary encoder controls volume & media, but of course, it does not stop there