Keychron J9 QMK Low Profile Wireless Mechanical Keyboard features a compact 75 percent layout, low profile Keychron Milk POM Banana switches and double shot PBT keycaps to provide a responsive typing experience in an ultra slim design. Tri-mode connectivity via 2.4GHz wireless, Bluetooth 5.2 and USB-C wired connections delivers up to a 1000Hz polling rate, while QMK firmware, hot-swappable switches, adjustable typing angles and per-key RGB customisation provide extensive flexibility.
Features
Keychron J9 QMK Wireless Mechanical Keyboard
Keychron J9 is an ultra-slim wireless custom mechanical keyboard. It supports 2.4 GHz, Bluetooth, and a wired connection. It allows anyone to master any keys or macro commands on its 75% compact layout through Keychron Launcher web app. Besides, it has included keycaps for both Windows and macOS, and users can hot-swap with low profile mechanical switch in a breeze.
The Keychron J9 is a low-profile wireless mechanical keyboard with a 75% layout. It supports 2.4 GHz, Bluetooth, and wired connections. Empowered by QMK, it offers endless possibilities and enhanced productivity in your work and gaming!
- Launcher Web Configurator
- Ultra-slim
- 2.4GHz & Bluetooth
- Support All Systems
- 1000 Hz Polling Rate
- Hot-swappable
- Acoustic Foam
- Double-Shot PBT Keycaps
2.4 GHz & Bluetooth Connection
Experience peak gaming performance on the fly with the 2.4 GHz wireless connection boasting a rapid 1000 Hz polling rate. For seamless multitasking across your computer, phone, and tablet, you can effortlessly connect the J9 via Bluetooth 5.2 to three devices.
Ultra-Slim
The innovative Keychron Milk POM Low-Profile Mechanical Switch is 33% slimmer than conventional normal profile switches makes the Keychron J9 one of the thinnest wireless mechanical keyboards in the world. While still delivering a distinguished tactile response.
- Conventional Switch
- Keychron Milk POM - Low Profile Mechanical Switch
Programme with QMK & Launcher
The open-source QMK firmware means endless possibilities for key remapping, macros, shortcuts, and more. Now you can easily customise each key with the Keychron Launcher web app.
* Please use the latest version of Chrome / Opera / Edge browser to open the Launcher and connect the keyboard to your device via wired mode.
Anytime, Anywhere Access
Keychron Launcher is a web page configurator that you can use in the office, school, lab, or government department—anywhere with internet access. Configure your keyboard online anytime without the need to download or install files. No hassle, no trouble.
Compatible with All Platforms
As a web-based tool, Keychron Launcher supports all operating systems. Personalise and programme your keyboard on Windows, macOS, Linux, and more. Enjoy unprecedented flexibility with compatibility across Chrome, Edge, and Opera browser.
Safe Inputs
You type your password, contact, home address, and other sensitive privacy information on keyboards every day. Keychron keyboards use QMK open-source firmware, allowing the community to review the codes for safety and ensuring no hidden features, so you have complete control over your input security.
Always Up to Date
Keychron Launcher is continuously updated, ensuring you always have access to the latest version. There's no need to download updates or wait for installations.
Suitable for All Devices
Offers a Mac layout while still being compatible with Windows, the J9 is one of the few on the market that has the same multimedia and function key functions as Apple keyboards for Mac users, but with more tactile feedback.
You can even configure different keymaps for both Mac and Windows devices. While Keychron Launcher web app is compatible with macOS, Windows, and Linux. Includes keycaps for both macOS and Windows (and additional esc and enter keys) to allow you to switch between operating systems with ease.
An Epic Core Inside
A low-power ARM architecture MCU equipped with 256K Flash will provide more flexibility for developers. The polling rate is 1000 Hz on wired mode (90Hz on wireless mode) right out of the box, which makes the latency hardly noticeable even in competitive games.
Interior Acoustic Foam
Elevate your typing with J9. Featuring advanced IXPE acoustic foam for quieter keystrokes and enhanced comfort, coupled with EPDM foam for superior key switch support, responsiveness, and durability. It redefines the standard for a quiet, comfortable, and responsive typing experience.
Aesthetic Back Plate
Crafted from aluminium alloy with a refined finish, this back plate provides a pristine and scratch-resistant surface that serves as a defining feature of the keyboard's clean and modern identity.
Hot-Swappable
Keychron all have their unique typing preferences, that’s why they are offering hot-swappable on the J9, so you can easily hot-swap every Keychron Milk POM switch in a few seconds to customise the typing experience without soldering.
*The J9 is currently compatible with Keychron Milk POM switches or Gateron/Keychron low-profile mechanical switches only, as QMK does NOT support low-profile optical switches.
Keychron Milk POM Switch
The Keychron Milk POM Switch is engineered with cutting-edge POM and POK materials, which deliver a deeper, resonant thock sound in low-profile designs. Pre-lubed for a precise and smooth feel, they offer a dependable fingertip experience, whether you prefer the linear (red) or tactile (brown, banana) switch options.
Low-Profile Double-Shot PBT Keycaps
Designed for premium type feeling, the J9 comes with unique Keychron double-shot PBT keycaps that made of durable non-backlight shine through PBT material with excellent oil resistance for long-term use.
Redesigned Stabilisers
We’ve redesigned the stabilisers to make it stay on the level the same way as the switch while making sure it still delivers reliability and less wobble on the big keys like the space bar, left Shift, backspace, and Enter key.
Unlock Dynamic Backlit Control
Go beyond standard presets with 22+ RGB backlight settings — including a static white option. Keychron's 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 customise the colour 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. Create creative, high-contrast combinations to make your entire setup pop with vibrant style.
Ergonomic Support
Three levels of adjustable typing angle (3°, 4° and 7°) aim to provide long-lasting ergonomic support for your wrist.
Backed by a 1 year Keychron warranty.
