Keychron K2 Max QMK Wireless Mechanical Keyboard With 75% Layout, Super Red Switch, RGB Backlight, 2.4GHz/BT/Wired, Hot-Swappable Option, Double-Shot PBT Keycaps for macOS / Windows / Linux | K2M-J1 Â
89 $
Categories: ACCESSORIES, GAMING/PRO KEYBOARD, Keyboard
🧠Expert Features – For the Typing Jedi and Macro Wizards
- Tri-Mode Connectivity: Switch between 2.4 GHz (1000 Hz polling rate), Bluetooth 5.1 (connects to 3 devices), and wired Type-C. One board to rule all your platforms.
- QMK + VIA + Keychron Launcher Support: Full key remapping, macros, and shortcut creation made easy via open-source firmware and an intuitive web app (wired mode required).
- Hot-Swappable (Optional): Swap your switches in seconds—compatible with most 3-pin and 5-pin MX-style switches. No soldering, just click and go.
- Keychron Super Red Switch: Linear, buttery, and built for speed with up to 50 million clicks lifespan. Includes transparent top housing for brighter RGB goodness.
- Acoustic Foam Layers (IXPE, PET, EPDM): Dampens clacks, refines the thock—making your keystrokes sound as good as they feel.
- South-Facing RGB Backlight: Better RGB visibility for the typist, 22+ lighting modes, and zero interference with Cherry-profile caps.
- Double-Shot PBT Keycaps (OSA Profile): Comfortable, spherical keycaps that resist shine, sweat, and smudges.
- Ergonomics Dialed In: Three typing angles (5°, 9°, 12°) and a 75% layout with minimal desk footprint.
- Multi-System Support: Toggle switch for macOS/Windows plus extra keycaps for both OS. Dual layout memory included.
- Steel Plate + PCB Screw-In Stabilizers: Sturdier typing, less wobble, and better feedback—especially on larger keys.
- Massive Battery Life: 4000 mAh battery delivers ~190 hrs with backlight off and ~100 hrs with RGB at low brightness.
- Built for Developers: With a 32-bit ARM Cortex-M4 STM32F402 MCU and 256KB flash, it’s perfect for coding and customization projects.











📊 Expert Specs – At a Glance
| Feature | Details |
|---|---|
| Layout | 84 keys (75%) – ANSI |
| Switch Type | Keychron Super Mechanical (Hot-swappable optional) |
| Keycap Material | Double-shot PBT (OSA Profile) |
| Backlight | South-Facing RGB – 22+ presets |
| Connectivity | 2.4 GHz / Bluetooth 5.1 / USB-C Wired |
| Polling Rate | 1000 Hz (2.4GHz + Wired), 90 Hz (Bluetooth) |
| Battery | 4000 mAh Li-Polymer |
| Wireless Runtime (No RGB) | Up to 190 hours |
| Wireless Runtime (With RGB) | ~100 hours (low brightness) |
| Compatible OS | macOS / Windows / Linux |
| Switch Compatibility | 3-pin & 5-pin MX-style |
| Stabilizers | PCB Screw-In (Supports 3rd-party) |
| MCU | ARM Cortex-M4 STM32F402 (256KB Flash) |
| Material Options | Plastic or ABS+Aluminum frame |
| Dimensions (Plastic) | 311.5 x 121.5 mm (12.27 x 4.79″) |
| Dimensions (Aluminum) | 316.6 x 126.6 mm (12.47 x 4.98″) |
| Weight | 940g (Plastic), 1080g (Aluminum) |
| Typing Angles | 5º / 9º / 12º |
| Height (Front/Rear) | 32.06 mm / 41.54 mm |
| Key Remapping | VIA / QMK / Keychron Launcher |
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