Keychron K5 Max Keyboard Universal USB RF Wireless Bluetooth Black Grey Mechanical RGB

Keychron K5 Max is an ultra-slim wireless custom mechanical keyboard with a full-size 100% layout. It supports 2.4 GHz wireless, Bluetooth 5.1, and a wired USB connection, and provides low-profile double-shot PBT keycaps for both Windows and macOS. The keyboard can be programmed via QMK firmware and the Keychron Launcher web app to customize keymaps, macros, and shortcuts. Available in an RGB Backlight Hot-Swappable version that accepts Gateron low-profile MX mechanical switches for easy switch replacement.

Advantages

The K5 Max combines a thin aluminum body with low-profile Gateron switches to deliver a compact mechanical typing experience while maintaining tactile responsiveness. It offers multiple connectivity options (2.4 GHz with 1000 Hz polling, Bluetooth, and wired), broad OS compatibility with dedicated macOS and Windows keycaps, and QMK/Launcher support for extensive customization. Optional hot-swap support and an ARM MCU with 256 KB flash expand flexibility for developers and users who want to modify layouts or swap switches without soldering.

Key specifications

• Layout: Full-size 100% with numeric keypad
• Connectivity: 2.4 GHz wireless (1000 Hz polling), Bluetooth 5.1 (multi-device), USB wired
• Firmware & software: QMK-compatible; Keychron Launcher web app (macOS, Windows, Linux)
• Switches: Low-profile Gateron MX 2.0 (hot-swappable option for RGB Backlight version)
• Keycaps: Low-profile double-shot PBT, includes macOS and Windows keycaps plus extra Esc and Enter
• Backlight: RGB variants (22+ effects) or white backlight (14 effects); adjustable hue, saturation, brightness, speed
• Body: Aluminum frame; ultra-slim design (low-profile switches ~31% slimmer than standard)
• Controller: ARM MCU with 256 KB Flash
• Acoustics: IXPE acoustic foam and latex foam interior for reduced noise and improved feel
• Ergonomics: Three adjustable typing angles
• Colors: Black, Grey

How to use

Connect the keyboard via USB for wired use, pair via Bluetooth 5.1 to switch among up to three devices, or use the included 2.4 GHz receiver for a low-latency 1000 Hz experience. Install or access the Keychron Launcher web app on macOS, Windows, or Linux to remap keys, create macros, and save different keymaps for Mac and Windows layouts. If you have the hot-swappable RGB version, remove and insert low-profile Gateron MX switches without soldering to change switch type or feel.