SKU: 71802342743

Keychron K3 Max QMK/VIA Wireless 75% Custom Mechanical Keyboard | BROWN Switches

Sale price$1147.05 Regular price$1274.50
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Ships within 48 hours · Estimated delivery Jul 24 - Jul 29

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Description

Keychron K3 Max QMK/VIA Wireless 75% Custom Mechanical Keyboard | BROWN SwitchesThe 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 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: 71802342743

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4.5 ★★★★★
Based on 12 reviews
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Product Reviews
A
Amazon Customer
Los Angeles, US
★★★★★ 5
Great boys slim fit suit for weddings, church, or special events
Color: Medium Grey, Size: 12
Great kids suit. Comes with a jacket, pants, and tie. Does not have a shirt. Fits as expected. Classic cut on the lapels. Great quality materials. Well made pants and jacket. The color is consistent without any fade or dark spots that can happen with lower quality fabrics. Looks great on. My son loves it. Says it is not restrictive, he can move easily in it. Highly recommend for church, special events, weddings, etc.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 22, 2025
M
Mommynificent
Belleville, US
★★★★★ 5
Nice high-quality, light weight suit for a tween!
Color: Navy Blue, Size: 10
This is such an attractive suit for a tween boy! My son loves dressing up, and this is his new favorite suit. He really likes the double-breasted style and the light weight of the fabric so that it isn't too hot. The tie that came with it gives major Harry Potter vibes which we weren't expecting, but he has lots of other ties that he also enjoys pairing with it. The size seems right, and it fits him well. He says it is very comfortable. I'm happy with the quality and the navy color.
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Reviewed in the United States on October 14, 2025
A
A. Beauto
Los Angeles, US
★★★★★ 5
Stylish and great value!
Color: Medium Grey, Size: 14
This grey suit was a great find for a school ceremony and will definitely be used again. The neutral color makes it easy to pair with different shirts and ties, and it has a modern, clean-cut look. The jacket and pants fit nicely after a quick press, and the quality was better than I expected for the price. It lost a star only because the waist on the pants needed a slight adjustment, but overall, we’re very happy with it!
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Reviewed in the United States on October 10, 2025
N
N. Hale
Belleville, US
★★★★★ 3
Runs big, and fabric may not be same color as picture
Color: Medium Grey, Size: 16, Color: Medium Grey, Size: 16
This suit was a good find for us, as we usually dress up for church, and my 13 yo son often wears suits. He normally wears a size 16, so that’s what we ordered, and in dark charcoal gray. The suit we got was a light, heathered gray that didn’t look much like the one in the picture. It was very wrinkly and thin, and a little scratchy. Also, the sleeves were way too long and the torso cut of the jacket was pretty wide. The pants were very large in the waist, but fit him decently in the length (he’s 5’4” and weighs 90 lbs). Overall the suit looked like it was drowning him, so I would order a size down unless you have a larger child/teen. Because of the ill fit, I haven’t had the chance to see what the suit looks like on him as it’s supposed to, but I guess I’ll return it or wait a year or two until he fills it out a bit more. Not overly impressed with the quality, so I’m not sure I’d pay $55 for this one again.
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Reviewed in the United States on October 20, 2025
A
Amy
Lake Worth, US
★★★★★ 5
Adorable, Complete Set—Great for Special Occasions
Color: Beige, Size: 12, Color: Beige, Size: 12
This suit set is such a great find! It comes with everything you need—jacket, pants, shirt, tie, and bow tie—which makes getting a dressed-up look so easy. It's excellent quality for a suit in this price range. The linen fabric gives it a nice, lightweight feel and a polished look that works well for both formal and semi-casual events. My son looked adorable in it, and it was perfect for the spring wedding we attended. What I love: Complete 5-piece set—no need to buy extras Lightweight and comfortable material Classic, stylish look with nice details (lapel, pockets, etc.) Adjustable waistband is super helpful for fit Versatile for weddings, holidays, and other events Fit was true to size based on the chart, but I agree with the recommendation—if your child is between sizes or growing quickly, sizing up is a good idea. I sized up with the hopes that he can wear it again for another event because it looks fantastic! Overall, a really cute and practical suit set that looks great without being uncomfortable. Perfect for any special event
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Reviewed in the United States on April 22, 2026

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