SKU: 37884102457

Keychron K3 Max Ultra-Slim Wireless 75% Mechanical Keyboard, QMK/VIA, Gateron Brown

Sale price$989.06 Regular price$1098.95
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Description

Keychron K3 Max Ultra-Slim Wireless 75% Mechanical Keyboard, QMK/VIA, Gateron BrownThe 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 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 gfPre-travel: 1.7 ± 0.4mmTravel distance: 3.0 ± 0.2mmBehavior: TactilePre-lubed: YesSound level: MediumSuitable for: Midway Office/gaming
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
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 37884102457

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Jerry Bohannon
Bozeman, US
★★★★★ 4
As described
Size: XX-Large, Color: White
As described
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Reviewed in the United States on September 12, 2025
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Della Lopez
West Palm Beach, US
★★★★★ 5
Very nice shirt
Size: Large, Color: Skin Pink
Color was just as pictured. Nice cool silky material. True to size. Love it
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Reviewed in the United States on August 3, 2025
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Mark H.
Alexandria, US
★★★★★ 5
Very nice shirts but unusually long sleeves
Size: Large, Color: Light Green
PJ PAUL JONES Mens Dress Shirts Wrinkle Free Stretch Button Down Shirt. I bought white, coffee, grey, autumn green and apricot. Colors are true to the ads. I'm 6' , 170 lbs. I bought these in Large. They fit very well in shoulders, chest, and my big belly. As many reviews have stated, the sleeves are unusually long - coming down past my palms to my fingers. I would give them a 4 rating for that but I bought them with the intention of making them short sleeve. The white shirt is just too nice to change so I'll reserve that for weddings and funerals. The apricot is very nice but I just wouldn't wear that color as a casual shirt but it does go with my brown blaser so I'll keep it for rare occasions. I washed them in warm and put them thru warm dryer and didn't notice any shrinkage which I wouldn't expect with polyester. Very good shirts at very good price.
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Reviewed in the United States on March 30, 2026
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Tamondo
Pawtucket, US
★★★★★ 5
A Solid Buy
Size: XX-Large, Color: Black
Purchased this shirt to wear to a concert. I love the material because it's stretchy and flexible unlike the traditional cotton. It's mainly wrinkle free but I ran a warm iron to get out the creases from being folded. I wore this with gray pants and it made my outfit feel put together. The sleeves are very easy to roll up and won't come undone. A very nice shirt to add to your clothing collection.
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Reviewed in the United States on April 10, 2026
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J. Samson
Boise, US
★★★★★ 4
Good looking shirt that runs a bit big in sizing.
Size: X-Large, Color: Green Gray
Nice looking shirt for dress up or casual wearing. Feels like silk, pretty wrinkle free. Lots of colors to chose from at a good price. Runs a bit big in size. I found the sleeves very long for me. But I like the casual look, feel and coolness in the heat of summer for a long sleeve shirt.
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Reviewed in the United States on August 9, 2025

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