Keychron K2 Max Keyboard Universal RF Wireless QWERTY English Black Grey 75% Mechanical

The Keychron K2 Max is a 75% wireless mechanical keyboard with a compact 84-key QWERTY layout in black and grey. It supports 2.4 GHz RF, Bluetooth 5.1 and wired connections, offers south‑facing RGB backlighting, OSA double‑shot PBT keycaps, screw‑in PCB stabilizers and an ARM MCU with 256 KB flash for advanced customization.

Advantages

The K2 Max provides multiple connection modes (2.4 GHz, Bluetooth and wired) and a high 1000 Hz polling rate on 2.4 GHz and wired modes for low latency. It supports QMK firmware and the Keychron Launcher web app for key remapping and macros. The keyboard includes layered acoustic foams (IXPE, PET, EPDM) and a steel plate to improve typing sound and feel, plus optional hot‑swappable sockets compatible with most 3‑pin and 5‑pin MX‑style switches. Additional features include south‑facing RGB, OSA profile double‑shot PBT keycaps, screw‑in stabilizers and three adjustable typing angles.

Suitable for

• Office work and productivity on macOS and Windows (system toggle and extra keycaps included)
• Gaming with low latency using 2.4 GHz or wired modes
• Custom keyboard enthusiasts who remap keys or use QMK/Keychron Launcher
• Users who want to hot‑swap switches or install alternative stabilizers and keycaps

Key specifications

• Form factor: 75% (84 keys)
• Connectivity: RF 2.4 GHz, Bluetooth 5.1 (up to 3 devices), USB wired
• Polling rate: 1000 Hz (2.4 GHz and wired)
• Firmware: QMK support; Keychron Launcher web app
• Switch: Keychron Super switch (hot‑swappable version optional); compatible with most 3‑pin and 5‑pin MX switches
• Keycaps: OSA profile double‑shot PBT, Windows and macOS keycap sets included
• Stabilizers: Screw‑in PCB stabilizers (supports third‑party)
• Backlight: South‑facing RGB, 22+ lighting effects, adjustable hue/saturation/brightness/speed
• Internal: ARM MCU with 256 KB Flash
• Acoustic design: IXPE, PET and EPDM foam layers; steel plate and added weight
• Angles: Three adjustable typing angles — 5°, 9° and 12°
• Colour: Black / Grey

How to use

Choose a connection mode (2.4 GHz dongle, Bluetooth pairing or USB wired) and switch system mode between macOS and Windows if needed. Install the Keychron Launcher web app or flash QMK to remap keys and program macros. If you have the hot‑swappable model, remove keycaps and pull out switches with a switch puller to replace them with compatible 3‑pin or 5‑pin MX‑style switches. Use the function shortcuts and built‑in controls to adjust RGB settings, polling rate and saved layouts.

Recommendations

For stable gaming performance use the 2.4 GHz connection with the included dongle or wired mode for the lowest latency. When customizing, back up profiles before flashing firmware. Use screw‑in stabilizers and OSA PBT keycaps to maintain consistent typing feel and reduce key wobble.