Keychron K4 Pro Wireless/USB Keyboard – 100 Keys, Hot-Swappable, QMK/VIA Programmable, RGB Backlit

Meet the Keychron K4 Pro

The Keychron K4 Pro is a 100-key compact keyboard built around a 96% layout. It blends wireless flexibility with a wired option, ensuring a smooth, distraction-free presence on any desk. The combination of a sturdy chassis, thoughtful keycraft, and programmable features is designed to support long sessions, creative workflows, and multi-device setups across macOS, Windows, and Linux.

Powering this board is an ultra-low-power ARM Cortex-M4 32-bit MCU with ample flash. This setup enables flexible customization for developers and tinkerers who want to remix layouts, assign macros, or tailor key behavior to their personal workflow. While the potential is exciting, the reality is practical: you can adapt keys and macros to fit common productivity tasks, gaming, or content creation without leaving your desk.

What you can customize with QMK/VIA

• Remap any key on any system (macOS, Windows, or Linux) via drag-and-drop in VIA and QMK configurations.
• Store and manage complex macro commands for streamlined operations across apps and games.
• Program layers to switch between typing, gaming, and shortcut-rich workflows with a single switch.

Hot-Swappable switches and typing feel

• Hot-swappable sockets on the PCB accept most MX-style switches (3-pin and 5-pin) without soldering.
• Pre-installed Keychron K Pro red switches offer a smooth, linear keystroke for quiet, fast typing and gaming.
• Optional third-party stabilizers are supported, improving stability for large keys like space, Enter, and Shift.

Sound, stability, and comfort

Sound-absorbing foam, a thick silicone dampening pad, and a steel plate come together to deliver a balanced, stable typing experience with reduced reverberation. The added weight helps keep the keyboard planted during intense use, while screw-in PCB stabilizers on the big keys enhance consistency across long sessions.

Ergonomics and illumination

South-facing RGB lighting brings vibrant, glare-free backlight visibility from your desk. With 22+ lighting modes and easy adjustments for hue, saturation, brightness, and speed, you can personalize the ambience. Three tilt angles (3°, 7°, and 10°) and curved OSA-profile keycaps promote a comfortable typing posture for extended work or play.

Connectivity and compatibility

The K4 Pro is a versatile wireless Bluetooth/USB keyboard with Windows and macOS keycaps included. It supports hot-swapping with any MX mechanical switch, letting you experiment with feel and sound without committing to a single option. The setup is designed to be intuitive for instant productivity across devices.

Overall, the Keychron K4 Pro presents a compelling option for users who want a programmable, compact keyboard with robust software support, flexible switching, and thoughtful ergonomics. It does not promise specific outcomes, but it does offer a set of adaptable features that can align with varied workstyles and creative tasks.