Keychron V3 Max is a QMK/VIA enabled custom mechanical keyboard, offering both 2.4 GHz wireless and Bluetooth 5.1 connectivity. Its classic TKL layout, upgraded MCU and gasket design, together with sound-absorbing foam, hot-swappable feature and more deliver all-around typing comfort. 2.4 GHz and Bluetooth Connection - The 2.4 GHz wireless and wired connection boasts a rapid 1000 Hz polling rate. You can also connect the V3 Max with up to 3 devices via a stable Bluetooth 5.1 for seamless multitasking. Support macOS, Windows and Linux - Built with the Mac users’ experience in mind while still retaining compatibility for Windows devices, the V3 Max comes with a system toggle and an additional set of customized keycaps for both Windows and macOS systems. Non-shine Through PBT Keycaps - Our unique OSA profile double-shot non-backlight shine through PBT keycaps will provide excellent oil resistance, enhance the type feel, and prevent the legends from fading out. While the south-facing RGB backlight is made for premium non-shine through keycaps. RGB and Hot-Swappable - The south-facing RGB LED is designed to better illuminate the keyboard backlight from the typist’s angle with the premium non-shine-through PBT keycaps installed. You can hot-swap every switch with almost all of the 3pin and 5pin MX style mechanical switches on the market without soldering required. V3 Max Swappable RGB Backlight Banana Switch - Black - Knob Version