Keychron K4 Max QMK Wireless Mechanical Keyboard
Keychron K4 Max QMK Wireless Mechanical Keyboard - Fully Assembled (Hot-Swappable) / RGB Backlight / Keychron Super Red is backordered and will ship as soon as it is back in stock.
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Keychron K4 Max is a wireless custom mechanical keyboard. It supports 2.4 GHz, Bluetooth, and a wired connection. It allows anyone to master keys or macro commands on its 96% layout through the Keychron Launcher web app. Besides, it has included keycaps for Windows and macOS, and users can hot-swap with the Keychron Super mechanical switch in a breeze(hot-swappable version only).
No discount code can be used for the K4 Max.
Please drop your email on "Notify Me When Available" if the product model is out of stock.
Keychron
K4 Max
The K4 Max is a wireless mechanical keyboard with a 96% layout. It supports 2.4 GHz, Bluetooth, and wired connections. Configurable through QMK and Keychron Launcher web app, it offers endless possibilities and enhanced productivity in your work and gaming!
The K4 Max upgraded the typing experience with multiple layers of acoustic foams, such as IXPE, PET, and EPDM, ensuring a superior sound and typing experience.
2.4 GHz & Bluetooth Connection
Experience a peak gaming performance on the fly with the 2.4 GHz wireless connection boasting a rapid 1000 Hz polling rate. For seamless multitasking across your computer, phone, and tablet, you can effortlessly connect the K4 Max via Bluetooth 5.1 to three devices.
Program with QMK & Launcher.
The open-source QMK firmware means endless possibilities for key remapping, macros, shortcuts, and more. Now you can easily customize each key with the Keychron Launcher web app.
* Please use the latest version of Chrome / Opera / Edge browser to open the Launcher and connect the keyboard to your device via wired mode.
Anytime, Anywhere Access
Keychron Launcher is a web page configurator that you can use in the office, school, lab, or government department—anywhere with internet access. Configure your keyboard online anytime without the need to download or install files. No hassle, no trouble.
Compatible with All Platforms
As a web-based tool, Keychron Launcher supports all operating systems. Personalize and program your keyboard on Windows, macOS, Linux, and more. Enjoy unprecedented flexibility with compatibility across Chrome, Edge, and Opera browser.
Safe Inputs
You type your password, contact, home address, and other sensitive privacy information on keyboards every day. Our keyboards use QMK open-source firmware, allowing the community to review the codes for safety and ensuring no hidden features, so you have complete control over your input security.
Always Up to Date
Keychron Launcher is continuously updated, ensuring you always have access to the lastest version. There's no need to download updates or wait for installations.
Significantly Enhanced Acoustic Foams
Elevate your typing with K4 Max featuring advanced IXPE acoustic foam for enhanced comfort, coupled with resilient EPDM foam for superior key switch support, responsiveness, and durability. The steel plate provides responsive feedback and a peaceful typing sound, while added weight will enhance the stability.
Suitable For All Devices
Built with the Mac users’ experience in mind while still retaining compatibility with Windows devices, the K4 Max comes with a system toggle and an additional set of customized keycaps for both Windows and macOS systems. You can now save two different layouts on the keyboard, one for each system.
An Epic Core Inside
A powerful ARM architecture MCU equipped with 256KB Flash will provide more flexibility for developers. The polling rate is 1000 Hz on 2.4GHz and wired modes right out of the box, which makes the latency hardly noticeable even in competitive games.
Hot-Swappable
Every detail matters for a personalized typing experience, that’s why we give you the power. You can hot-swap every switch on the K4 Max with almost all of the 3pin and 5pin MX style mechanical switches on the market (including Cherry, Gateron, Kailh, Panda, etc.) without soldering. You can customize your own typing experience in seconds.
Keychron Super Switch
Our exclusive Keychron Super switch adopts a new mold with unparalleled precision. Every switch is tested for pro-grade quality and has a lifespan of up to 50 million clicks, providing great reliability and high performance for long typing sessions. Its new light affection structure on its transparent top housing also ensures high light transmittance and a more consistent, brighter backlight effect.
OSA Profile Double-shot PBT Keycaps
To further fine-tune your typing experience, the K4 Max comes with our unique OSA profile (OEM profile with spherical-angle) and double-shot PBT keycaps that aim to provide a more comfortable fingertip feel with excellent oil resistance for long-term use on the 96% layout.
PCB Ultimate Precision and Stability
Our upgraded stabilizers now feature reinforced sidewalls around the stem, providing enhanced protection and significantly improving stability. These "walls" create a stronger connection between the switches and keycaps, ensuring smoother and more reliable typing on larger keys such as the spacebar, shift, enter, and backspace. Precise craftsmanship makes the stabilizers more stable and less wobbly.
South-facing RGB Backlights
The south-facing RGB is designed to better illuminate the keyboard backlight from the typist’s angle. The south-facing RGB is also free from interference when the user installs Cherry-profile alternative keycaps on their keyboard.
Comes with more than 22 types of RGB backlight settings. You can further fine-tune the RGB hue, saturation, brightness, effect speed with ease.
Ergonomic Support
Three levels of adjustable typing angle (3º, 7º & 10º) and curved OSA-profile keycaps are all working together to provide long-lasting ergonomic support for your wrist.
What's in the box?
What's in the box?
SPECIFICATION
Number of Keys: 100 (96%)
Switches: Keychron Super Switch
Face: South-facing
Number of Multimedia Keys: 12
Frame Material: ABS
Keycap Material: Double-shot PBT
Keycap Profile: OSA (OEM profile with spherical-angle)
Layout: ANSI
Polling Rate (2.4GHz and Wired Mode): 1000Hz
Polling Rate (BT Mode): 125Hz
N-Key Rollover (NKRO): Yes for both wireless and wired modes
CONNECTIVITY AND POWER
Backlit: 22 types of RGB backlight options plus endless possibilities
Battery: 4000 mAh rechargeable li-polymer battery
Wireless Working Time (Backlit off): Around 190 hours (Lab test result may vary by actual use)
Wireless Working Time (RGB): Around 100 hours (Lowest brightness)
Connection: 2.4 GHz / Bluetooth / Type-C wired
Bluetooth version: 5.1
Bluetooth Device Name: Keychron K4 Max
Compatible System: macOS / Windows / Linux
PHYSICAL UNIT
Dimension: 391.29mm x 140.27mm (15.40 x 5.52")
Weight: 1290g / 2.84 lbs
Height without keycap (front): 23.83 mm (0.93")
Height without keycap (rear): 30.87 mm (1.21")
Height incl. keycap (front): 32.52 mm (1.28")
Height incl. keycap (rear): 40.68 mm (1.60")
Typing Angle: 3º, 7º and 10º
MCU: ARM Cortex-M4 32-bit STM32F402 (256KB Flash)
Operating Environment: -10 to 50℃
Learn more about the Keychron K4 Max such as the shortcuts, Launcher web app tutorial, factory reset, and more in the FAQ section.
