Keychron - K3 Ultra 8K Wireless Custom Mechanical Keyboard

KEYCHRON K3 ULTRA 8K

The K3 Ultra 8K is a low-profile wireless mechanical keyboard with a sleek 75% layout. Featuring a premium natural wood and metal frame, it delivers an ultra-fast 8K polling rate in both wired and wireless modes for exceptionally responsive performance. It supports Bluetooth, wired, and ultra-low-latency 2.4 GHz connectivity. Empowered by open-source ZMK firmware, the K3 Ultra 8K unlocks endless customize possibilities while delivering up to 550 hours of battery life for enhanced productivity in both work and gaming.

Color Styles

K3 HE is available in two elegant color options: a clean white version and a sleek black version, allowing you to choose the style that best matches your setup and personal preference.

2.4 GHz & Bluetooth Connection

Experience the advantage of an 8000 Hz polling rate in both wired and 2.4 GHz modes, delivering ultra-responsive, pro-grade precision for competitive gaming. For seamless multitasking, Bluetooth 5.2 allows you to switch effortlessly between up to three devices. From extreme speed to wireless convenience, the K3 Ultra 8K delivers it all.

550 Hours of Use on a Single Charge

Don't wait for a full charge—use it even while charging and enjoy uninterrupted performance with an impressive battery life of up to 550 hours (with the backlight off).

Wood Meets Metal

The K3 Ultra 8K combines the natural elegance of natural wood with a precision metal frame, creating a look that feels both refined and powerful. The contrast of warm wood texture and sleek metal craftsmanship delivers a premium balance of natural beauty and modern performance.

Ultra-slim

Featuring an ultra-thin 11.9mm low-profile switch, the K3 Ultra achieves a sleek front edge profile of just 20.0mm, making this wooden-bodied device one of the thinnest wireless mechanical keyboards in the world while still delivering a distinguished tactile response.

Keychron Milk POM Switch

Crafted with advanced self-lubricating POM and POK materials, the Keychron Milk POM Switch delivers an impressively smooth feel right out of the box and becomes even smoother over time with every keystroke. Pre-lubed for added consistency and paired with a deeper, more resonant thock in a low-profile design, it offers a refined and reliable typing experience across linear Red and tactile Brown or Banana switch options.

Hot-swappable

Since everyone has unique typing preferences, the K3 Ultra features a hot-swappable design. You can easily swap out every Keychron Milk POM switch in seconds to customize your experience—no soldering required.

An Epic Core Inside

A powerful ARM architecture MCU equipped with 1 MB of flash provides more flexibility for developers. The polling rate is 8000 Hz in 2.4 GHz 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 the K3 Ultra featuring advanced IXPE acoustic foam for silent keystrokes and enhanced comfort, coupled with resilient EPDM foam for superior key switch support, responsiveness, and durability. This keyboard redefines the standard for a quiet, comfortable, and responsive typing experience.

Customize Every Part

To create a fully customizable keyboard, we designed every component to be easy to assemble. This allows you to customize and fine-tune every element according to your own preferences.

KEYCAPSLow-profile Double-Shot PBT keycaps on the K3 Ultra provide excellent oil resistance while preventing legends from fading over time.
POLYMER FRAMEThe K3 Ultra 8K combines natural wood with a precisely engineered metal frame, balancing natural elegance with modern, high-performance craftsmanship.
SWITCHESSwitches are essential mechanical components; different types (linear/tactile) provide unique typing feels and sounds.
PLATEThe keyboard plate keeps the switches securely in place, provides structural support, and influences the typing feel and sound profile.
SOUND-ABSORBING FOAMSound-absorbing foam (latex foam) helps reduce echo and unwanted typing noise, delivering a cleaner sound profile.
PCBThe printed circuit board registers keystrokes; hot-swappable versions allow easy switch replacement.
BOTTOM CASE ACOUSTIC FOAMBottom case acoustic foam effectively reduces vibrations and minimizes hollow sounds, providing a softer and more cushioned typing experience.
EPDM FOAMThis soft foam helps reduce vibrations and noise while providing a cushioned typing feel.
BOTTOM CASEA solid, high-quality aluminum case designed to provide a quieter typing experience with reduced vibrations.

SUITABLE FOR ALL DEVICES

Designed for seamless compatibility across macOS and Windows. Easily switch between operating systems with the included Mac and Windows keycaps for a familiar typing experience on every device.

Low-Profile Double-Shot PBT Keycaps

Designed for a premium typing feel, the K3 Ultra features our unique double-shot PBT keycaps. They are made of durable, non-shine-through PBT material with excellent oil resistance for long-term use.

Program with ZMK & Launcher

The open-source ZMK firmware means endless possibilities for key remapping, macros, shortcuts, and more. Now you can easily customize each key with the Keychron Launcher web app.

Unlock Dynamic Backlit Control

Go beyond standard presets with 22+ RGB backlight settings — including a static white option. Our advanced lighting engine includes two powerful features to fuel your creativity: Per-key RGB and Mix RGB. You can further fine-tune and remap keys with ease, crafting your unique style with vivid, dynamic RGB control.

Per-key RGB

With Per-key RGB, every single key is a digital brushstroke. This feature lets you individually customize the color of each key, transforming your keyboard into a vibrant canvas.

Mix RGB

With Mix RGB, you can split your keyboard into two custom lighting zones, each with unique effects. Design high-contrast combinations to make your entire setup pop with vibrant style.