Description
Keychron K4 Max QMK Wireless Mechanical Keyboard
Keychron K4 Max is a wireless custom mechanical keyboard. It supports 2.4 GHz, Bluetooth, and a wired connection. It allows anyone to master keys or macro commands on its 96% layout through the Keychron Launcher web app. Besides, it has included keycaps for Windows and macOS, and users can hot-swap with the Keychron Super mechanical switch in a breeze(hot-swappable version only).
Specification:
| Number of Keys | 100 (96%) |
| Switches | Keychron Super Switch |
| Switch Face | South-facing |
| Number of Multimedia Keys | 12 |
| Frame Material | ABS |
| Keycap Material | Double-shot PBT |
| Keycap Profile | OSA (OEM profile with spherical-angle) |
| Layout | ANSI |
| Polling Rate (2.4GHz and Wired Mode) | 1000Hz |
| Polling Rate (BT Mode) | 125Hz |
| N-Key Rollover (NKRO) | Yes for both wireless and wired modes |
| Backlight | 22 types of RGB backlight options plus endless possibilities |
| Battery | 4000 mAh rechargeable li-polymer battery |
| Wireless Working Time (Backlit off) | Around 190 hours (Lab test result may vary by actual use) |
| Wireless Working Time (RGB) | Around 100 hours (Lowest brightness) |
| Connection | 2.4 GHz / Bluetooth / Type-C wired |
| Bluetooth version | 5.1 |
| Bluetooth Device Name | Keychron K4 Max |
| Compatible System | macOS / Windows / Linux |
| Dimension (Plastic frame version) | 391.29mm x 140.27mm (15.40 x 5.52") |
| Weight | 1290g / 2.84 lbs |
| Dimension (Aluminum frame version) | 316.62 x 126.56 mm (12.47 x 4.98") |
| Weight | 1080g / 2.38 lbs |
| Height without keycap (front) | 23.83 mm (0.93") |
| Height without keycap (rear) | 30.87 mm (1.21") |
| Height incl. keycap (front) | 32.52 mm (1.28") |
| Height incl. keycap (rear) | 40.68 mm (1.60") |
| Typing Angle | 3º, 7º and 10º |
| MCU | ARM Cortex-M4 32-bit STM32F402 (256KB Flash) |
| Operating Environment | -10 to 50℃ |
