Keychron

Keychron K8 Max K8M-J4 Banana Switch QMK Wireless TKL Mechanical Keyboard (Boxed)

SKU 40569 Brand Keychron EAN13 4895248881285
Keychron K8 Max K8M-J4 is an 80% TKL wireless mechanical keyboard with Banana switches, hot-swap, QMK, 2.4GHz/Bluetooth/wired connectivity, south-facing RGB, and 4000mAh battery for up to 190hrs use.
Keyboards - Device Type Gaming Keyboard Office Keyboard
Keyboards - Special Features Hot Swappable Programmable Keys
Keyboards - Form Factor Tenkeyless (TKL / 80%)
Keyboards - Key Layout US
Keyboards - Switch Type Mechanical - Tactile
Keyboards - Connection Bluetooth Wired (USB) Wireless RF (USB Dongle)
Keyboards - Backlighting South-facing RGB

The Keychron K8 Max (K8M-J4) is a premium wireless mechanical keyboard featuring an 80% TKL layout with 87 keys. Equipped with tactile Keychron Super Banana switches, hot-swappable PCB, and south-facing RGB backlighting with 22 effects. Supports tri-mode connectivity: 2.4GHz (1000Hz polling), Bluetooth 5.1 (3 devices), and USB-C wired.

Experience premium typing with OSA profile double-shot PBT keycaps, screw-in PCB stabilizers, aluminum frame, and multi-layer acoustic foams (IXPE, EPDM, PET) for enhanced sound and stability. Powered by 4000mAh battery offering up to 190 hours (backlight off) or 100 hours (RGB low). Fully programmable via QMK and Keychron Launcher web app.

Compatible with Mac, Windows, Linux. Includes N-Key Rollover, 1000Hz polling in 2.4GHz/wired modes, and ARM Cortex-M4 MCU.

  • Hot-swappable 3/5-pin MX switches
  • South-facing per-key RGB (22 modes)
  • 4000mAh battery (190hrs no backlight)
  • Tri-mode: 2.4GHz, BT 5.1, USB-C
  • QMK/VIA programmable
  • Aluminum frame + acoustic foams
  • Full accessory kit included
Layout80% TKL (87 keys)
SwitchesKeychron Super Banana (Tactile)
KeycapsOSA Profile Double-shot PBT
FrameABS + Aluminum
BacklightingSouth-facing RGB (22 modes)
Polling Rate (2.4GHz/Wired)1000 Hz
Polling Rate (Bluetooth)90 Hz
N-Key RolloverYes (wired & wireless)
Battery4000 mAh Li-Polymer
Battery Life (No Backlight)Up to 190 hours
Battery Life (RGB Low)Up to 100 hours
Connectivity2.4 GHz / Bluetooth 5.1 / USB-C
Bluetooth Devices3
FirmwareQMK (programmable)
Hot-swappableYes (3/5-pin MX)
MCUARM Cortex-M4 32-bit (256KB Flash)
CompatibilitymacOS / Windows / Linux