Keychron K2 Max RGB wireless mechanical keyboard, 75%, ENG, K2M-J1
KEYCHRON

Keychron K2 Max RGB wireless mechanical keyboard, 75%, ENG, K2M-J1

The Keychron K2 Max (K2M-J1) is a wireless 75% mechanical keyboard that keeps the F-row and arrow keys in a compact body. It connects through a 2.4 GHz receiver, over Bluetooth 5.1 or by cable, and its switches are hot-swappable.

  • Connection: 2.4 GHz receiver (1000 Hz), Bluetooth 5.1 for up to three devices, USB-C cable
  • Layout: ENG (ANSI), 84 keys
  • Switches: mechanical, hot-swappable (3-pin and 5-pin MX), 4.4 mm travel
  • Form factor: 75%, ABS and aluminium, 311 × 122 × 42 mm, 940 g
  • Power: 4000 mAh battery, up to 190 hours
  • Systems: Windows, macOS, Linux

Description

Compact without losing the keys you need

The 75% layout keeps the F-row and the arrow keys but drops the number pad, so the mouse sits closer to your hand. Several layers of damping foam and a steel plate give a stable, quiet keypress. OSA profile double-shot PBT keycaps hold up to long use, and the south-facing RGB backlight lights the legends from the typist's angle.

Who this keyboard is for

People working at the office or at home who want one keyboard for both a PC and a Mac: extra keycaps are in the box and a system toggle sits on the case. Hot-swap sockets suit anyone who wants to try other switches later. If you enter a lot of numbers, a full-size model will serve you better.

Specifications

General

BrandKEYCHRON
Recommended usageUniversal
Product colourBlack/Grey
MaterialAcrylonitrile butadiene styrene (ABS), Aluminium
Device interfaceUSB + RF Wireless + Bluetooth
KeycapsDouble shot
Hot-swapYes
RolloverN-key rollover
KB languageENG
Polling rate1000/90
Built-in memoryYes
Multimedia keysYes
Physical layoutANSI
Ergonomic designYes
Keycaps materialPolybutylene terephthalate (PBT)
Number of hot keys12
Key travel distance4.4
EAN4895248880349

Storage

Built-in memory capacity256

Ports

USB Type-C charging portYes

Connectivity

Bluetooth version5.1
Connectivity technologyWired & Wireless
Wireless receiver interfaceUSB Type-A
Frequency band2.4

Software & security

Mac operating systems supportedYes
Linux operating systems supportedYes
Windows operating systems supportedYes

Keyboard & controls

Numeric keypadNo
Pointing deviceNo
Keyboard styleStraight
Keyboard weight940
Keyboard key switchMechanical
Keyboard form factor75%
Keyboard number of keys84
Adjustable keyboard heightYes
Keyboard dimensions (WxDxH)311.54 x 121.54 x 41.54
Keyboard keys operating life50

Battery & power

Battery technologyLithium Polymer (LiPo)
Battery capacity4000 Wh
Battery life (max)190 h
AC adapter includedNo
Power source typeBattery
Keyboard battery typeBuilt-in battery

Performance & capacities

Operating temperature (T-T)0 – 10 – 50 °C
Programmable hot keysYes

Features

Receiver includedYes
BacklightYes
Backlight typeRGB LED
Mouse includedNo
Backlight colourMulticolour
Adjustable backlightYes
Multi-device supportYes

Questions & answers

Does the keyboard have Estonian letters?

No. The layout is English ENG (ANSI), so Õ, Ä, Ö and Ü are not printed on the keys. To type in Estonian, add the Estonian keyboard layout in your system settings.

Which switches does this version have?

Keychron describes the K2 Max with Keychron Super switches, but the switch type (linear or tactile) for the K2M-J1 is not specified in the manufacturer data. The hot-swap sockets take 3-pin and 5-pin MX-style switches.

How long does the battery last?

Keychron rates the 4000 mAh battery at up to 190 hours. Real figures depend on the backlight and connection mode, and charging is over USB-C.