Keychron K3 Max QMK/VIA Wireless Custom Mechanical Keyboard
The K3 Max is a low-profile wireless mechanical keyboard with a 75% layout. It supports 2.4 GHz, Bluetooth, and wired connections. With QMK/VIA support, it offers unlimited possibilities for your work and gaming, boosting productivity!


2.4 GHz and Bluetooth Connectivity
Experience peak gaming performance with 2.4 GHz wireless connectivity and a rapid 1000 Hz polling rate. For seamless multitasking across computers, phones, and tablets, you can easily connect the K3 Max to three devices via Bluetooth 5.1.

Ultra-thin
The innovative low-profile Gateron switches are 31% slimmer than conventional normal profile switches, making the aluminum body K3 Max one of the thinnest wireless mechanical keyboards in the world, while still providing excellent tactile feedback.

Programmable with QMK and VIA.
QMK/VIA means unlimited possibilities for a fluid workflow. Thanks to our engineering team, for the first time in history, a wireless mechanical keyboard works out of the box. Just connect the K3 Max to your device with a cable, drag and drop your favorite keys or macro commands to remap any key you want on any system (macOS, Windows, or Linux).

Enable K3 Max key mapping on VIA
Since the VIA code for the K3 Max version is still pending approval on Github, it is not yet automatically recognized. Please download the corresponding keyboard mapping JSON file below, open VIA, enable "Show Design Tab" on the "Settings" tab, and then drag the JSON file to the "Design" tab on VIA to enable K3 Max keyboard mapping on VIA.
Works with all devices
It offers a Mac layout while maintaining Windows compatibility. It stands out in the market by providing Mac users with the same multimedia and function key features as Apple keyboards, but with enhanced tactile feedback. Additionally, you can configure different key mappings for Mac and Windows devices. The VIA software is compatible with macOS, Windows, and Linux. This keyboard includes keycaps for macOS and Windows, as well as extra Esc and Enter keys, facilitating seamless switching between operating systems.


Epic Core Inside
Equipped with a powerful ARM architecture MCU with 256KB flash, it provides greater flexibility for developers. With an out-of-the-box polling rate of 1000 Hz in 2.4GHz and wired modes, latency is almost imperceptible, even in competitive gaming.
Internal Sound Dampening Foam
The K3 Max features advanced IXPE acoustic foam for silent keystrokes and enhanced comfort, coupled with resilient latex foam for superior switch support, responsiveness, and durability, elevating your typing experience. Redefining the standard for quiet, comfortable, and responsive typing.

Hot-Swappable (Optional)
We all have our unique typing preferences, which is why we offer a hot-swappable option on the K3 Max, allowing you to easily hot-swap every low-profile Gateron mechanical switch in seconds, customizing your typing experience without soldering.
* The K3 Max is currently only compatible with Gateron/Keychron low-profile mechanical switches, as QMK does not support low-profile optical switches.

Low-profile Gateron Switches
Gateron low-profile MX 2.0 mechanical switches are designed for enhanced reliability. Whether you prefer linear (red), clicky (blue), or a switch in between (brown), Gateron's reputable switches are your best choice for a precise, smooth, and reliable fingertip feel.

Low-profile Double-shot PBT Keycaps
The K3 Max is designed for a premium feel and comes with our unique double-shot PBT keycaps, made from durable non-backlight-transparent PBT material, which offers excellent oil resistance for long-term use.

Redesigned Stabilizers
We've redesigned the stabilizers to keep them at the same level as the switches, while ensuring they still provide reliability and reduce wobble on large keys like the spacebar, left Shift, backspace, and Enter keys.

RGB Backlight
Equipped with over 22 RGB backlight settings (and a static white backlight option), the white backlight version comes with 14 backlight settings. You can easily further fine-tune RGB hue, saturation, brightness, and effect speed.

Ergonomic Support
The three-level adjustable typing angle is designed to provide long-lasting ergonomic wrist support.
What's in the box?

Specifications
Number of Keys: 84 (75%)
Switches: Gateron Low-Profile Mechanical Switches
Switch Orientation: North-facing
Number of Multimedia Keys: 12
Frame Material: ABS + Aluminum Frame
Keycap Material: Low-Profile Double-shot PBT
Layout: ANSI
Polling Rate (2.4Ghz and Wired Mode): 1000Hz
Polling Rate (BT Mode): 90Hz
N-Key Rollover (NKRO): Both wireless and wired modes
*The K3 Max is currently only compatible with Gateron/Keychron low-profile mechanical switches, as QMK does not support low-profile optical switches.
Connectivity and Power
Backlight: 22 RGB backlight options and infinite possibilities
Battery: 1550 mAh rechargeable Li-polymer battery
Wireless Working Time (backlight off): Up to 78 hours (lab test results may vary depending on actual usage)
Wireless Working Time (RGB): Up to 40 hours (lowest brightness)
Connectivity: 2.4 GHz / Bluetooth / Type-C Wired
Bluetooth Version: 5.1
Bluetooth Device Name: Keychron K3 Max
Compatible System: macOS / Windows / Linux
Physical Unit
Dimensions: 306 x 116 mm (12.04 x 4.56 inches)
Weight: 525 g / 1.16 lbs
Height without keycaps (front): 11 mm (0.43")
Height without keycaps (rear): 15 mm (0.59")
Height including keycaps (front): 17 mm (0.66")
Height including keycaps (rear): 22 mm (0.86")
Typing Angle: 2.5°, 4.2°, and 6.5°
MCU: ARM Cortex-M4 32-bit STM32F402 (256KB Flash)
Operating Environment: -10 to 50℃