Keychron

Keychron K8 Max K8M-B4 Banana Switch 80% US QMK Wireless Keyboard (Boxed)

SKU 40609 Brand Keychron EAN13 4895248881162
Keychron K8 Max is a TKL 80% wireless mechanical keyboard with Banana switches, QMK/VIA programmable, 2.4GHz/Bluetooth/wired connectivity, south-facing RGB, hot-swappable, 4000mAh battery up to 190hrs.
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 - Linear
Keyboards - Connection Bluetooth Wired (USB) Wireless RF (USB Dongle)
Keyboards - Backlighting South-facing RGB

The Keychron K8 Max (K8M-B4) is a premium wireless custom mechanical keyboard featuring an 80% TKL layout with 87 keys in US ANSI configuration. It supports triple connectivity: 2.4GHz wireless (1000Hz polling), Bluetooth 5.1 (up to 3 devices), and USB-C wired. Fully programmable via QMK firmware and Keychron Launcher web app for macros, remapping, and more.

Equipped with hot-swappable Keychron Super Banana switches (mechanical linear), OSA profile double-shot PBT keycaps, steel plate, advanced acoustic foams (IXPE, EPDM, PET), and south-facing RGB backlighting with 22+ effects. Features 4000mAh battery (190hrs backlight off), NKRO, ARM MCU, and Mac/Windows compatibility with multimedia keys.

In the Box:

  • 1x Fully Assembled Keyboard (case, PCB, steel plate, foams, PBT keycaps, Banana switches, stabilizers)
  • 1x USB-A to USB-C Cable
  • 1x 2.4GHz Receiver + Extension Adapter
  • 1x Keycap & Switch Puller
  • 1x Screwdriver
Number of Keys87 (80% TKL)
LayoutUS ANSI
SwitchesKeychron Super Banana (Mechanical Linear, Hot-swappable)
Keycap MaterialDouble-shot PBT, OSA Profile
Frame MaterialABS + Aluminum frame, Steel Plate
Connection2.4GHz (1000Hz), Bluetooth 5.1 (90Hz), USB-C Wired (1000Hz)
BacklightingSouth-facing RGB, 22+ effects
Battery4000 mAh, ~190 hours (backlight off), ~100 hours (RGB low)
Polling Rate1000Hz (2.4GHz/Wired), 90Hz (BT)
N-Key RolloverYes (wired & wireless)
FirmwareQMK, Keychron Launcher compatible
MCUARM Cortex-M4 32-bit STM32F402 (256KB Flash)
Multimedia Keys12
CompatibilitymacOS, Windows, Linux, iOS, Android
Operating Environment-10 to 50°C