Keychron K3 Max QMK/VIA Wireless Custom Mechanical Keyboard ISO Layout Collection

SKU: K3M-H1-SW
€113,00

Version
Layout Version
Switch Option

Keychron K3 Max is an ultra-slim wireless custom mechanical keyboard. It supports 2.4 GHz, Bluetooth, and a wired connection. It allows anyone to master any keys or macro commands on its 75% compact layout through VIA. Besides, it has included LSA (low profile spherical-angled) profile keycaps for both Windows and macOS, and users can hot-swap with Gateron low-profile MX mechanical switch in a breeze.

ISO Layouts: German, Nordic, UK, Swiss.

No discount code can be used for the K3 Max.



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Keychron K3 Max
ISO Layout Collection

Keychron K3 Max QMK/VIA ultra-slim custom mechanical low profile keyboard ISO Layout

The K3 Max is a low-profile wireless mechanical keyboard with a 75% layout. It supports 2.4 GHz, Bluetooth, and wired connections. Empowered by QMK/VIA, it offers endless possibilities and enhanced productivity in your work and gaming!

Features of Keychron K3 Max QMK/VIA ultra-slim custom mechanical low profile keyboard ISO Layout

K3 Max ISO Layout Versions

These versions include the UK, German, Swiss, and Nordic layouts, all with extra keycaps suitable for Mac and Windows devices.

🇬🇧 UK-ISO Layout

UK-ISO Layout Keychron K3 Max QMK/VIA ultra-slim custom mechanical low profile keyboard

🇩🇪 German DE-ISO Layout

German DE-ISO Layout Keychron K3 Max QMK/VIA ultra-slim custom mechanical low profile keyboard

🇨🇭Swiss-ISO Layout

Swiss ISO Layout Keychron K3 Max QMK/VIA ultra-slim custom mechanical low profile keyboard

🇩🇰 🇫🇮 🇳🇴 🇸🇪 Nordic-ISO Layout

Nordic ISO Layout Keychron K3 Max QMK/VIA ultra-slim custom mechanical low profile keyboard

2.4 GHz & Bluetooth Connection

Experience 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 K3 Max via Bluetooth 5.1 to three devices.

Keychron K3 Max QMK/VIA ultra-slim custom mechanical low profile keyboard ISO Layout

Ultra-Slim

The innovative low-profile Gateron switch is 31% slimmer than conventional normal profile switches makes the aluminum body K3 Max one of the thinnest wireless mechanical keyboards in the world. While still delivering a distinguished tactile response.

Keychron K3 Max QMK/VIA ultra-slim custom mechanical low profile keyboard ISO Layout
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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.

Program with QMK & LauncherClick here to use Keychron Launcher

* Please use the latest version of Chrome / Opera / Edge browser to open the Launcher and connect the keyboard to your device via wired mode.

Suitable For All Devices

Offers a Mac layout while remaining compatible with Windows. It stands out in the market by providing the same multimedia and function key functions as Apple keyboards for Mac users, but with enhanced tactile feedback.
 
Additionally, you can configure different keymaps for both Mac and Windows devices. The VIA software is compatible with macOS, Windows, and Linux. The keyboard includes keycaps for both macOS and Windows, along with additional esc and enter keys, facilitating seamless switching between operating systems.

Keychron K3 Max QMK/VIA ultra-slim custom mechanical low profile keyboard ISO Layout
Keychron K3 Max QMK/VIA ultra-slim custom mechanical low profile keyboard ISO Layout

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.

Interior Acoustic Foam

Elevate your typing with K3 Max featuring advanced IXPE acoustic foam for silent keystrokes and enhanced comfort, coupled with resilient latex foam for superior key switch support, responsiveness, and durability. Redefining the standard for a quiet, comfortable, and responsive typing experience.

Keychron K3 Max QMK/VIA ultra-slim custom mechanical low profile keyboard ISO Layout

Hot-swappable

We all have our unique typing preferences, that’s why we are offering hot-swappable option on the K3 Max, so you can easily hot-swap every low-profile Gateron mechanical switch in a few seconds to customize the typing experience without soldering.
 
*The K3 Max is currently compatible with Gateron/Keychron low-profile mechanical switches only, as QMK does NOT support low-profile optical switches.

Hot-swappable Keychron K3 Max QMK/VIA ultra-slim custom mechanical low profile keyboard ISO Layout

Low-Profile Gateron Switch

The Gateron low-profile MX 2.0 Mechanical switch is designed to enhance reliability. Gateron's reputable switches are your best choice for a precise, smooth, and reliable fingertip feel whether you prefer linear (red), clicky (blue), or something in between (brown).

Gateron low profile Switch Features
Low-Profile Double-shot PBT Keycaps

Low-Profile Double-shot PBT Keycaps

Designed for premium type feeling, the K3 Max comes with our unique double-shot PBT keycaps that made of durable non-backlight shine through PBT material with excellent oil resistance for long-term use.

Redesigned Stabilizers

We’ve redesigned the stabilizers to make it stay on the level the same way as the switch while making sure it still delivers reliability and less wobble on the big keys like the space bar, left Shift, backspace, and Enter key.

Screw in PCB Stabilizers

RGB Backlights

Comes with more than 22 types of RGB backlight settings (as well as a static white backlight option), and 14 types of backlight settings on the White Backlight version. You can further fine-tune the RGB hue, saturation, brightness, effect speed with ease.

K3 Max QMK ISO keyboard Ergonomic Support Adjustable typing feet and angle

Ergonomic Support

Three levels of adjustable typing angle aim to provide long-lasting ergonomic wrist support.

What's in the box?

Package list of Keychron K3 Max QMK/VIA ultra-slim custom mechanical low profile keyboard ISO Layout
Differenes among the low profile K Max, K Pro, and K Series keyboards

Frequently bought together

Select the matching variant for your product.

Keychron Keyboard Wooden Palm Rest
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Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest
Keychron Keyboard Wooden Palm Rest

Keychron Keyboard Wooden Palm Rest

Keychron K7 Travel Pouch Orange 2
Keychron Travel Pouch
Crafted with Saffiano leather, the Keychron K3 travel pouch is designed to protect your K3 keyboard in style.
Crafted with Saffiano leather, the Keychron K3 travel pouch is designed to protect your K3 keyboard in style.
Crafted with Saffiano leather, the Keychron K3 travel pouch is designed to protect your K3 keyboard in style.
Keychron Travel Pouch
Keychron K7 Travel Pouch Orange
Keychron K7 Travel Pouch Black
Keychron K7 Travel Pouch Grey
Keychron K7 Travel Pouch Black 2
Keychron K7 Travel Pouch Grey 2
Keychron Travel Pouch
Keychron Travel Pouch
Keychron Travel Pouch
Keychron Travel Pouch
Keychron Travel Pouch
Keychron Travel Pouch
Keychron Travel Pouch
Keychron Travel Pouch
Keychron Travel Pouch
Keychron K7 Travel Pouch Orange 2
Keychron Travel Pouch
Crafted with Saffiano leather, the Keychron K3 travel pouch is designed to protect your K3 keyboard in style.
Crafted with Saffiano leather, the Keychron K3 travel pouch is designed to protect your K3 keyboard in style.
Crafted with Saffiano leather, the Keychron K3 travel pouch is designed to protect your K3 keyboard in style.
Keychron Travel Pouch
Keychron K7 Travel Pouch Orange
Keychron K7 Travel Pouch Black
Keychron K7 Travel Pouch Grey
Keychron K7 Travel Pouch Black 2
Keychron K7 Travel Pouch Grey 2
Keychron Travel Pouch
Keychron Travel Pouch
Keychron Travel Pouch
Keychron Travel Pouch
Keychron Travel Pouch
Keychron Travel Pouch
Keychron Travel Pouch
Keychron Travel Pouch
Keychron Travel Pouch

Keychron Travel Pouch

Keychron Premium Coiled Aviator Cable
Keychron Premium Coiled Aviator Cable
Keychron Premium Coiled Aviator Cable
Keychron Premium Coiled Aviator Cable
Keychron Premium Coiled Aviator Cable
Keychron Premium Coiled Aviator Cable
Keychron Premium Coiled Aviator Cable
Keychron Premium Coiled Aviator Cable
Keychron Premium Coiled Aviator Cable
Keychron Premium Coiled Aviator Cable
Keychron Premium Coiled Aviator Cable
Keychron Premium Coiled Aviator Cable
Keychron Premium Coiled Aviator Cable
Keychron Premium Coiled Aviator Cable
Keychron Premium Coiled Aviator Cable
Keychron Premium Coiled Aviator Cable

Keychron Premium Coiled Aviator Cable

Low Profile Gateron Mechanical Switch Set
MX-style low-profile Gateron mechanical switch red
Low Profile Gateron Mechanical Switch Set
MX-style low-profile Gateron mechanical switch blue
Low Profile Gateron Mechanical Switch Set
MX-style low-profile Gateron mechanical switch brown
Low Profile Gateron Mechanical Switch Set
Low Profile Gateron Mechanical Switch Set
Low Profile Gateron Mechanical Switch Set
MX-style low-profile Gateron mechanical switch red
Low Profile Gateron Mechanical Switch Set
MX-style low-profile Gateron mechanical switch blue
Low Profile Gateron Mechanical Switch Set
MX-style low-profile Gateron mechanical switch brown
Low Profile Gateron Mechanical Switch Set
Low Profile Gateron Mechanical Switch Set

Low Profile Gateron Mechanical Switch Set

Keychron Double-Sleeved Geek Cable
Keychron Double-Sleeved Geek Cable
Keychron Double-Sleeved Geek Cable
Keychron Double-Sleeved Geek Cable
Keychron Double-Sleeved Geek Cable
Keychron Double-Sleeved Geek Cable
Keychron Double-Sleeved Geek Cable
Keychron Double-Sleeved Geek Cable

Keychron Double-Sleeved Geek Cable

Keychron USB Bluetooth Adapter for Windows PC
Keychron USB Bluetooth Adapter for Windows PC
Keychron USB Bluetooth Adapter for Windows PC
Keychron USB Bluetooth Adapter for Windows PC

Keychron USB Bluetooth Adapter for Windows PC

Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat
Keychron Desk Mat

Keychron Desk Mat

Low Profile Double Shot PBT LSA Keycap Set Version 2
Low Profile Double Shot PBT LSA Keycap Set Version 2
Low Profile Double Shot PBT LSA Keycap Set Version 2
Low Profile Double Shot PBT LSA Keycap Set Version 2
Low Profile Double Shot PBT LSA Keycap Set Version 2
Low Profile Double Shot PBT LSA Keycap Set Version 2
Low Profile Double Shot PBT LSA Keycap Set Version 2
Low Profile Double Shot PBT LSA Keycap Set Version 2

Low Profile Double Shot PBT LSA Keycap Set Version 2

SPECIFICATION

Number of Keys: 84 (75%)
Switches: Gateron low-profile mechanical
Switch Face: North-facing
Number of Multimedia Keys: 12
Case Material: ABS+Aluminum frame
Keycap Material: Low-profile double-shot PBT
Layout: ISO
Polling Rate (2.4Ghz and Wired Mode): 1000Hz
Polling Rate (BT Mode): 90Hz
N-Key Rollover (NKRO): Yes for both wireless and wired modes
 
*The K3 Max is currently compatible with Gateron/Keychron low-profile mechanical switches only, as QMK does NOT support low-profile optical switches.

CONNECTIVITY AND POWER

Backlit: 22 types of RGB backlight options plus endless possibilities
Battery: 1550 mAh rechargeable li-polymer battery
Wireless Working Time (Backlit off): Up to 78 hours (Lab test result may vary by actual use)
Wireless Working Time (RGB): Up to 40 hours (Lowest brightness)
Connection: 2.4 GHz / Bluetooth / Type-C wired
Bluetooth version: 5.1
Bluetooth Device Name: Keychron K3 Max
Compatible System: macOS / Windows / Linux

PHYSICAL UNIT

Dimension: 306 x 116 mm (12.04 x 4.56")
Weight: 525 g / 1.16 lbs
Height without keycap (front): 11 mm (0.43")
Height without keycap (rear): 15 mm (0.59")
Height incl. keycap (front): 17 mm (0.66")
Height incl. keycap (rear): 22 mm (0.86")
Typing Angle: 2.5º, 4.2º and 6.5º
MCU: ARM Cortex-M4 32-bit STM32F402 (256KB Flash)
Operating Environment: -10 to 50℃

Keychron K3 Max User Guide

Learn more about the Keychron K3 Max such as the shortcuts, VIA tutorial, factory reset, and more in the FAQ section.

Customer Reviews

Based on 7 reviews
57%
(4)
0%
(0)
29%
(2)
0%
(0)
14%
(1)
C
Chris
Never arrived and support unresponsive

I never received my package and the support does not be willing to help.
The keyboard was sent from the EU to my address within the EU and therefore the sender is responsible for making sure it arrives and provide proof. Your support however only tells me to take care of the issue myself which is not only annoying but also violating EU laws.

G
Goran Ristic
Hmmm…. Has Pros and Cons

The keyboard is well built. For me, RGB lighting is important so I can type in low light. Unfortunately, the keycaps are opaque, and I can’t see what I’m typing at all. It seems that a K3 Max is really only good for gaming. For typing and a lot of writing, the keys are a bit too close together. A Q keyboard might be better suited for that overall.

The second major drawback is the battery. I think it lasts far too little, especially when RGB is active. (When it’s not active, everything is dark, and in poor or low light, you can’t see anything at all.)

Would I buy it again? - No, probably not. Maybe one from the Q series. But even there, the battery is unfortunately too limited. What a pity.

Is it well build? - Yes!

N
N.K.
Great keyboard

The keyboard itself is great, it sounds and feels good. However, the black ESC key was damaged, which is a shame since I didn't want to use the orange one.

Tip for Mac users: restart your Mac if it isn't recognising your keyboard as ISO, after you complete the keyboard setup.

C
Csaba Forrai
Nice keyboard with limited options for keycaps

I would like to use the K3 Max ISO with the available low-profile ABS shine-through keycap set to have the proper national layout, but some parts (Enter, Backspace, Space bar) are not compatible. What a disappointment.

N
Nazar Bachynskyy
Great Keyboard, highly recommended

I have this keyboard for a few weeks now and must say that it is really great. Previously I had a Logitech MX Keys, that was my favourite keyboard for a long time. But this one might take that spot now. The typing experience on the K3 Max (brown switches) has good. They sound nice. The browns are not too loud, I have used it daily in the office and have had no complaints whatsoever. Coming from the MX Keys, it is difficult to say is the browns have a similar feel. The feel of membrane vs mechanical is really not comparable. I picked Browns because to my opinion the MX Keys also had a slight bump to them. But pick whatever switch you want and just test them, that is probably the advice that i can give.

So just buy this keyboard, you will not regret it. (and ISO layout is just superior imo)