Keychron
Keychron K3 Max QMK/VIA Wireless 75% Custom Mechanical Keyboard | BROWN Switches
SKU: K3M-H3
Why We Chose This
We selected the Keychron K3 Max because it offers a rare combination of ultra-slim design, full QMK/VIA customisation, and a 1000Hz polling rate — features typically found in bulkier keyboards. The Gateron Brown switches provide a satisfying tactile feel without disturbing others, making it perfect for shared workspaces or late-night gaming. Its tri-mode connectivity ensures seamless switching between devices, ideal for users with multiple setups.
Ultra-slim 75% wireless mechanical keyboard with Gateron Brown switches, tri-mode connectivity, 1000Hz polling, and QMK/VIA customisation.
Free delivery on orders over R3,000
Specifications
Product Description
The Keychron K3 Max is an ultra-slim 75% compact mechanical keyboard that blends portability with high-performance features. With Gateron Brown switches, it offers a tactile bump without a loud click, making it ideal for both typing and gaming. Supporting 2.4 GHz, Bluetooth 5.1, and USB-C wired connections, it seamlessly switches between devices. The 1000Hz polling rate in 2.4GHz and wired modes ensures near-zero input lag, while QMK/VIA compatibility allows full key remapping and macros via the Keychron Launcher web app. LSA keycaps are pre-installed for a comfortable typing experience on both Windows and macOS.
Key Features
- Ultra-slim 75% layout saves desk space
- Tri-mode connectivity: 2.4 GHz, Bluetooth 5.1, USB-C
- 1000Hz polling rate for low-latency gaming
- Gateron Brown switches: tactile, quiet
- QMK/VIA support for full customisation
- LSA keycaps compatible with Windows and macOS
Why You'll Love It
Whether you're a programmer, gamer, or multitasker, the K3 Max delivers a premium typing experience in a sleek, portable form. The hot-swappable switches and extensive customisation options let you tailor the keyboard to your exact preferences.
📋 View full supplier specifications →
The Keychron K3 Max QMK/VIA Low Profile Wireless Custom Mechanical Keyboard is an ultra-slim 75% compact mechanical keyboard designed for maximum versatility and efficiency. Supporting 2.4 GHz, Bluetooth 5.1, and USB Type-C wired connectivity, it seamlessly adapts to various work and gaming environments. Users can take full control of their setup using the Keychron Launcher web app, which enables key remapping, macros, and custom commands with ease. The LSA (low-profile spherical-angled) keycaps are designed for both Windows and macOS, ensuring a smooth typing experience right out of the box.
Designed for fast-paced gaming and professional multitasking, the K3 Max features a 1000Hz polling rate in both 2.4GHz and wired modes, minimizing input lag for near-instant responsiveness. The Gateron Low Profile Brown switches offer a tactical, pre-lubed feel, delivering responsive keystrokes with medium sound levels, making them ideal for Midway office work and gaming. The keyboard’s hot-swappable version allows users to customize their typing experience without soldering, making it easier than ever to swap switches for a personalized feel.
Powered by QMK/VIA firmware, the K3 Max provides extensive customization options for power users. The ARM Cortex-M4 32-bit MCU with 256KB Flash ensures stable performance, while the IXPE acoustic foam dampens keystroke sounds, creating a quieter and more comfortable typing experience. Additionally, redesigned stabilizers help reduce key wobble, especially on larger keys like the space bar, Shift, Enter, and Backspace, ensuring greater accuracy and consistency. For Mac users, the dedicated macOS layout replicates the Apple keyboard function keys, making it a seamless transition for Apple enthusiasts.
Aesthetically, the K3 Max combines functionality with style, featuring double-shot PBT keycaps for enhanced oil resistance and durability. With 22 RGB backlight effects (plus a white backlight option), users can further fine-tune brightness, hue, and effect speed for a fully immersive experience. The 1550mAh battery provides up to 73 hours of wireless use with backlight off and 42 hours with RGB at its lowest brightness, ensuring long-lasting wireless performance. Compact, powerful, and highly customizable, the Keychron K3 Max sets a new benchmark for low-profile mechanical keyboards.
FEATURES:
- Customisable keyboard with 75% layout
- 2.4GHz & Bluetooth connection
- QMK/VIA Support
- Double-shot PBT keycaps
- Ultra-slim design
- Hot-swappable
- RGB LED lights
- Low profile Gateron Low Profile BROWN switches
- Acoustic foam
SPECIFICATIONS:
- Colour: Black
- Number of Keys: 84 (75%)
- Switches: Gateron low-profile mechanical
- Switch Face: North-facing
- Number of Multimedia Keys: 12
- Frame Material: ABS + Aluminium 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): Yes for both wireless and wired modes
- Backlit: 22 types of RGB backlight options plus endless possibilities
- Battery: 1550mAh rechargeable li-polymer battery
- Wireless Working Time (Backlit off): Around 73 hours (Lab test result may vary by actual use)
- Wireless Working Time (RGB): Around 42 hours (Lowest brightness)
- Connection: 2.4GHz / Bluetooth / Type-C wired
- Bluetooth version: 5.1
- Bluetooth Device Name: Keychron K3 Max
- Compatible System: macOS / Windows / Linux
- Typing Angle: 2.5º, 4.2º and 6.5º
- MCU: ARM Cortex-M4 32-bit STM32F402 (256KB Flash)
- Operating Environment: -10 to 50℃
- Gateron Low Profile BROWN Switch:
- Operating force: 55 ± 15 gf
- Pre-travel: 1.7 ± 0.4mm
- Travel distance: 3.0 ± 0.2mm
- Behavior: Tactile
- Pre-lubed: Yes
- Sound level: Medium
- Suitable for: Midway Office/gaming
- Product Dimensions: 30.6 x 11.6 x 1.7~2.2 cm
- Product Weight: 525g
WHAT’S IN THE BOX:
- Keychron K3 Max QMK/VIA Low Profile Wireless Custom Mechanical Keyboard | BROWN Switches – Black x1
- Type-A to Type-C Cable x1
- Extension Adapter for Receiver x1
- Type-A 2.4GHz Receiver x1
- Keycap & Switch Puller x1
Frequently Asked Questions
Can I use the Keychron K3 Max with both Windows and Mac?+
Yes, the K3 Max comes with keycaps and a switch that supports both Windows and macOS layouts. You can toggle between the two using the side switch.
Does the K3 Max support hot-swappable switches?+
Yes, the K3 Max features hot-swappable sockets, allowing you to change switches without soldering. However, it only supports low-profile Gateron switches.
What is the battery life of the K3 Max?+
The K3 Max has a 1550mAh battery that can last up to 34 hours with the backlight off (depending on usage). With RGB lighting on, battery life is shorter.
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