Keychron

Lemokey X4 QMK X4-A1 Wired Mechanical Keyboard 75% Red Switch US (Boxed)

SKU 40122 Brand Keychron EAN13 4895248862895
Lemokey X4 QMK/VIA 75% wired gaming keyboard with 1000Hz polling, gasket mount, PC plate, aluminum knob, red backlighting, pre-lubed Red switches. Ideal for gaming/work.
Keyboards - Device Type Gaming Keyboard Office Keyboard
Keyboards - Special Features Programmable Keys
Keyboards - Form Factor Compact (60% / 65% / 75%)
Keyboards - Key Layout US
Keyboards - Switch Type Mechanical - Linear
Keyboards - Connection Wired (USB)
Keyboards - Backlighting Single-Color

Introducing the Lemokey X4 QMK, a premium wired mechanical gaming keyboard featuring a compact 75% layout and 1000 Hz polling rate for ultra-responsive performance. Its gasket-mount structure with PC plate delivers flex and satisfying acoustics, while the aluminum volume knob adds precise control. Shine-through double-shot ABS keycaps (OEM profile) glow brilliantly under the red LED backlighting.

Powered by a high-performance ARM Cortex-M4 MCU with 256KB Flash, the X4 supports full QMK/VIA customization via the web-based Lemokey Launcher—remap keys, create macros, and program dynamic effects effortlessly. Pre-lubed Keychron Red linear switches ensure smooth, reliable keystrokes with N-Key Rollover (NKRO) for competitive gaming. Adjustable typing angles (4°/8°/10°) provide ergonomic comfort for long sessions.

In the box:

  • 1x Fully Assembled Lemokey X4 Keyboard
  • 1x USB Type-A to Type-C Cable
  • 1x Keycap Puller
Layout75%
SwitchesKeychron Red Mechanical (Linear, Pre-lubed)
Polling Rate1000 Hz
MCUARM Cortex-M4 32-bit STM32F402RC (256KB Flash)
Mount StyleGasket Mount with PC Plate
KeycapsOEM Profile Shine-Through Double-Shot ABS
BacklightingRed LED (14+ modes)
N-Key RolloverYes (NKRO)
ConnectivityWired USB Type-C
Typing Angles4° / 8° / 10°
Dimensions (Keyboard)32.5 x 14.5 x 4.09 cm (incl. keycaps)
Body MaterialABS Plastic
Compatible OSWindows / macOS / Linux
FirmwareQMK / VIA
KnobAluminum Volume Knob