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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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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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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dc-in-md
Pawtucket, US
★★★★★ 4
Nice shirt. Wrinkles alot.
Size: 4X-Large Big, Color: Light Grey Vertical Stripe
Like the style and construction of the shirt. Fit and finish are as expected. Unfortunately the fabric wrinkles easily. Definitely requires ironing. Wish this shirt was a wash and wear but it's definitely a wash and iron before wearing shirt. Otherwise I have no complaints. Fabric is lightweight and could be used in summer as a dress shirt.
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Reviewed in the United States on May 26, 2024
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MJM
Fort Morgan, US
★★★★★ 5
good value
Size: 4X-Large Big Tall, Color: Pale Pink
These are amazing for the price. They are good quality shirt and the material is thicker than I expected.
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Reviewed in the United States on May 14, 2026
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muzixplorer
Dallas, US
★★★★★ 5
Very nice shirts
Size: Large, Color: White
These are a heavier fabric than I was expecting but that’s fine since it’s winter. They barely shrink being washed in hot water and dried in a hot dryer. I was actually hoping that they would shrink a little more after losing 40 pounds. But they shrunk just a little and they fit just fine. Also, if you take them out of the dryer immediately there are very few wrinkles.
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Reviewed in the United States on February 23, 2026
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Ashley Cloyd
Pawtucket, US
★★★★★ 3
Dress shirt
Size: XX-Large Big Tall, Color: Powder Blue
The material is a nice quality and the color is very close to the picture but I think it’s a bit darker in person. It definitely doesn’t fit like a “tall” should though but I think if we would have sized up it would have been to big. Overall it was an ok purchase for what we needed it for but it is a bit short.
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Reviewed in the United States on February 12, 2026
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Pat Jensen
Cuba, US
★★★★★ 5
Fit check = great
Size: X-Large, Color: Light Grey Vertical Stripe
Happy to finally find a great shirt fit for both business and casual looks. This shirt line is made in Sri Lanka (not Bangladesh). It has a great fit around the shoulders and chest for a 40 year old American male. It fits true to form and was recommended to me directly by Grok AI based on my exact waist, chest and neck measurements. It doesn't pull tight across the chest, and fits really nice with a sport coat. It's comfortable and breathable, the fabric is thick and high quality. You can wear this tucked or untucked depending on the attire you need. I bought 2 and will definitely buy the rest of the color line up. I'd love to see more colors and patterns available in this fit.
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Reviewed in the United States on February 28, 2025

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