The K4 Max is a wireless hot swappable mechanical keyboard with a 96% layout. It supports 2.4 GHz, Bluetooth, and wired connections. Configurable through QMK and Keychron Launcher web app, it offers endless possibilities and enhanced productivity in your work and gaming! Tri-mode 2.4 GHz & Bluetooth 5.1& Wired Connection Experience peak gaming performance on the fly with the 2.4 GHz wireless connection boasting a rapid 1000 Hz polling rate. For seamless multitasking across your computer, phone, and tablet, you can effortlessly connect the K4 Max via Bluetooth 5.1 to three devices. Suitable For All Devices Built with the Mac users’ experience in mind while still retaining compatibility with Windows devices, the K4 Max comes with a system toggle and an additional set of customized keycaps for both Windows and macOS systems. You can now save two different layouts on the keyboard, one for each system. Program with QMK & Launcher The open-source QMK firmware means endless possibilities for key remapping, macros, shortcuts, and more. Now you can easily customize each key with the Keychron Launcher web app. Significantly Enhanced Acoustic Foams Elevate your typing with K4 Max featuring advanced IXPE acoustic foam for enhanced comfort and resilient EPDM foam for superior key switch support, responsiveness, and durability. The steel plate provides responsive feedback and a peaceful typing sound, while added weight will enhance the stability. Ergonomic Support Three levels of adjustable typing angle (3º, 7º & 10º) and curved OSA-profile keycaps are all working together to provide long-lasting ergonomic support for your wrist. Hot-Swappable Keychron Super Switch Keychron Super switch utilizes a new mold with unparalleled precision, ensures great reliability and high performance for extensive typing. The transparent top housing with a new light structure, enhancing light transmittance for a brighter, more consistent backlight effect. South-facing RGB Backlights The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. K4 Max RGB Merchant Video Comes with more than 22 types of RGB backlight settings. You can further fine-tune the RGB hue, saturation, brightness, effect speed with ease.Unique OSA profile and double-shot PBT keycaps provide a more comfortable fingertip feel with excellent oil resistance for long-term use on the 96% layout. Specs Model Keychron K4 Max Number of Keys 100 (96%) Frame Material ABS Switches Keychron Super mechanical Backlight 22 types of RGB backlight options plus endless possibilities Keycap Material Double-shot PBT Connectivity 2.4 GHz / Bluetooth 5.1 / Type-C wired Battery 4000 mAh rechargeable li-polymer battery N-Key Rollover (NKRO) Yes for both wireless and wired modes Compatible System macOS/Windows/Linux Polling Rate 1000Hz in 2.4GHz and Wired Mode; 125Hz in BT Mode MCU ARM Cortex-M4 32-bit STM32F402 (256KB Flash)