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Keychron K3 Max · Photo source

Keychron K3 Max
Photo 1 of 16

Keychron K3 Max · Photo source

Keychron · K Max

K3 Max

Released November 2023

Keychron's ultra-slim 75% wireless keyboard with low-profile mechanical switches and QMK firmware, connecting by 2.4 GHz receiver, Bluetooth or cable, suited to people who want a thin mechanical keyboard for Mac and Windows.

Layout
Compact
Switches
Low-profile mechanical
Backlight
RGB
Battery
73 hours
Connects by
Bluetooth, USB receiver and Cable
Weight
525 g

Specifications

Report a wrong or missing spec

Typing

Layout
Compact
Switches
Low-profile mechanical
Backlight
RGB
Keys labelled for
Mac, Windows and more
Touch ID
No
Switches
Gateron low-profile mechanical (Red, Blue or Brown; Banana on the white version) or Keychron low-profile mechanical (Red); north-facing; hot-swappable version accepts Gateron and Keychron low-profile mechanical switches only
Keycaps
Low-profile double-shot PBT, LSA profile; keycaps for Windows and macOS plus extra Esc and Enter keys
Layouts
84 keys (75%); ANSI (keychron.com); UK ISO (keychron.uk)
Backlight
22 RGB backlight effects, per-key RGB and two-zone Mix RGB; a white-backlight version is also sold
Special keys
12 multimedia keys; separate keymaps for Mac and Windows; N-key rollover wireless and wired

Connections and battery

Connects by
Bluetooth, USB receiver and Cable
Devices it switches between
3
Power
Rechargeable
Battery life (maker's claim)
Up to 73 hours
Receiver
2.4 GHz USB receiver at 1,000 Hz polling; Bluetooth 5.1 at 90 Hz to up to three devices; USB-C wired at 1,000 Hz
Battery life detail
1,550 mAh lithium-polymer battery; around 73 hours with the backlight off and around 42 hours with RGB at its lowest brightness (Keychron's lab tests)
Works with
macOS, Windows and Linux
Software
QMK firmware; Keychron Launcher web app for key remapping, macros and lighting

Design

Weight
525 g
Width × depth × height
306 × 116 × 22 mm
Size
306 × 116 mm, 525 g; 11 mm (front) and 15 mm (rear) high without keycaps, 17 mm and 22 mm with them; typing angles of 2.5°, 4.2° and 6.5°
Materials
ABS and aluminium frame; IXPE acoustic foam and latex foam
Colours
Black, White, White Gray (keychron.com)

Pros and cons

Pros

  • Low-profile switches and keycaps; 22 mm high at the back including keycaps
  • Connects by 2.4 GHz receiver (1,000 Hz), Bluetooth to three devices, or USB-C cable (1,000 Hz)
  • QMK firmware, remappable in the Keychron Launcher web app; Mac and Windows keycaps included

Cons

  • Around 73 hours per charge with the backlight off, and around 42 hours with RGB at its lowest brightness
  • Hot-swappable version takes only Gateron or Keychron low-profile mechanical switches
  • 90 Hz polling over Bluetooth

Closest rivals

Model
LayoutSwitchesBacklightBatteryConnects byWeightReleased
LogitechPRO X 60
CompactMechanicalRGB65 hoursBluetooth, USB receiver and Cable610 gApr 2024
LogitechMX Mechanical Mini
CompactLow-profile mechanicalWhite10 monthsBluetooth and USB receiver612 gMay 2022
KeychronV1 Max
CompactMechanicalRGB190 hoursBluetooth, USB receiver and Cable770 gNov 2023

Sources

  1. keychron.uk/products/keychron-k3-max-qmk-via-wireless-custom-mechanical-keyboar…
  2. keychron.com/products/keychron-k3-max-qmk-via-wireless-custom-mechanical-keyboa…
  3. web.archive.org/web/20231122032002/https://www.keychron.com/products/keychron-k…

Photo: cdn.shopify.com

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