75% Compact Hot-Swap KeyboardThe 82-key mechanical keyboard with 75% layout saves more desktop space for the mouse. The keyboard can be compatible with 3/5-pin mechanical switches. The mechanical switches have been pre-lubricated at the factory and are ready to use out of the box. Gasket StructureAK820 mechanical keyboard uses a gasket-mounted design coupled with a Flex-cut PC plate, built-in 5 layers of sound insulation cotton, Poron sandwich cotton, IXPE under-axis pad, PET premium sound pad and bottom cotton, Noise is maximally reduced, The 1.2 mm PCB board slot and the PC positioning board slot optimize resilience and stability,making the hand feel softer and more elastic. Adjustable RGB BacklightAK820 has RGB backlight with up to 1.6M colors. With the Fn key combination, you can easily turn the light on and off, switch the light color, light effect, brightness and speed. You can also make more light settings through the driver. Ergonomics Angle and Detachable C