Keychron K4 Wireless Mechanical Keyboard

Keychron K4 Wireless Mechanical Keyboard

96% Compact Layout 100 keys in a space-saving design: Full function row, arrow cluster, and numpad — nearly everything from a 100% board without the bulk. Perfect for spreadsheets, coding, or number-crunching while keeping your desk tidy.

Hot-Swappable Switches

• Gateron G Pro Red – Linear, smooth, and quiet (pre-lubed for effortless gliding).
• Gateron G Pro Brown – Tactile with a subtle bump for feedback.
• Gateron G Pro Blue – Clicky, satisfying snap (louder for that classic mech vibe). Compatible with 3-pin or 5-pin MX-style switches — swap without soldering via the hot-swap sockets (note: “~” key supports 3-pin only).

Gasket-Mounted Design Soft, cushioned typing with reduced vibrations and a deeper “thock” sound. Enhanced with acoustic foams in Version 3 for quieter, more refined acoustics.

Connectivity Options

• Bluetooth 5.2: Pair with up to 3 devices (e.g., phone, laptop, tablet) — seamless switching for multi-device workflows.
• 2.4 GHz Wireless: Low-latency dongle for gaming or responsive use.
• Wired USB-C: 1000 Hz polling for zero-lag precision; doubles as charging. Battery: 4000 mAh — up to 240 hours without backlight (2-3 weeks typical use); auto-sleep for efficiency.

RGB Backlighting South-facing LEDs with 15+ customizable effects and modes. Shine-through ABS (or PBT in some editions) keycaps ensure visibility in dim light. Cycle via dedicated light key; adjustable brightness (north-facing in HE variant).

QMK/VIA Customization

• Open-source firmware for remapping keys, layers, and macros.
• Keychron Launcher (web app): Browser-based (no install) — tweak shortcuts, actuation (in HE), or RGB on Windows/macOS/Linux.
• Included keycaps for both Windows and Mac layouts.

Build & Ergonomics

• Case: ABS plastic with aircraft-grade aluminum frame for durability.
• Plate: Aluminum for stability.
• Keycaps: Double-shot ABS (opaque or shine-through); OSA profile for comfort.
• Stabilizers: Plate-mounted — smooth on larger keys like spacebar.
• Tilt: Adjustable legs (5°/8°/11° angles).
• Dimensions: ~14.8 x 5.0 x 1.3 inches; Weight: ~1.5-2.3 lbs (varies by edition).
• MCU: ARM Cortex-M4 for reliable performance.

Variants

• Standard K4 (Versions 2/3): Mechanical switches; white or RGB backlight.
• K4 Pro: Low-profile optical switches for slimmer feel.
• K4 HE (2025 Edition): Hall-effect magnetic switches (Gateron Nebula) with adjustable actuation (0.1-4.0 mm), Rapid Trigger, and gaming modes like SOCD/Analog — stiffer but highly tunable.