KJ2-H3
KEYCHRON J2 WIRELESS MECHANICAL KEYBOARD/HOT SWAP/BROWN SWITCH/RGB-BLK NEW
Keychron J2 75% Wireless Mechanical Keyboard, Black, Super Brown Switches, Hot-Swappable RGB, QMK, 2.4 GHz, Bluetooth 5.2, USB-C
Expert Features
- 75% Compact Layout: 83-key ANSI layout keeps the arrow keys and function row in a desk-friendly footprint.
- Keychron Super Brown Switches: This KJ2-H3 variant uses tactile mechanical switches for a noticeable bump while typing.
- Hot-Swappable RGB Version: Change compatible 3-pin or 5-pin MX-style mechanical switches without soldering.
- Three Connection Modes: Connect over 2.4 GHz wireless, Bluetooth 5.2, or USB-C wired.
- Fast Gaming Polling: 1000 Hz polling in 2.4 GHz and wired modes; Bluetooth runs at 125 Hz.
- Bluetooth for Three Devices: Pair with up to three devices and switch between them for your PC, phone, and tablet.
- QMK and Keychron Launcher: Remap keys and set up macros or shortcuts through Keychron’s web-based configuration tool.
- Last Key Priority: The LKP feature prioritizes the most recently pressed key to help with quick directional changes.
- Customizable RGB Lighting: Choose from 22+ RGB settings, including static white, with per-key and mixed-zone lighting customization.
- Double-Shot PBT Keycaps: Durable PBT keycaps resist oil and help keep the legends from fading.
- Windows, macOS and Linux Support: A system toggle and Mac/Windows keycaps make it easy to switch setups.
- Three Typing Angles: Select 4.5°, 6.4°, or 8.8° to suit your desk and typing preference.
- 4000 mAh Battery: Keychron rates battery life at around 300 hours with backlighting off, or around 168 hours with RGB at lowest brightness; real usage varies.
Expert Specs
| Specification | Details |
|---|---|
| Brand | Keychron |
| Model | J2 QMK Wireless Mechanical Keyboard |
| SKU | KJ2-H3 |
| Variant | Black, RGB Backlight (Hot-Swappable), Keychron Super Brown |
| Layout | ANSI, 75% |
| Number of keys | 83 |
| Multimedia keys | 12 |
| Switch type | Mechanical, Keychron Super Brown |
| Switch face | North-facing |
| Hot-swappable | Yes |
| Replacement switch compatibility | Most 3-pin and 5-pin MX-style mechanical switches, including Cherry, Gateron, Kailh and Panda |
| Keycap material | Double-shot PBT |
| Keycap profiles | Cherry or MDA, depending on keycap option |
| Frame material | ABS |
| Connectivity | 2.4 GHz wireless, Bluetooth, USB-C wired |
| Bluetooth version | 5.2 |
| Bluetooth device capacity | Up to 3 devices |
| Bluetooth device name | Keychron J2 |
| Polling rate | 1000 Hz in 2.4 GHz and wired modes; 125 Hz in Bluetooth mode |
| N-Key Rollover (NKRO) | Yes, wireless and wired |
| Backlighting | 22+ RGB options, including static white |
| Battery | 4000 mAh rechargeable lithium-polymer |
| Wireless working time, backlight off | Around 300 hours; lab result, actual use varies |
| Wireless working time, RGB on | Around 168 hours at lowest brightness; lab result, actual use varies |
| Compatible systems | Windows, macOS, Linux |
| Typing angles | 4.5° / 6.4° / 8.8° |
| Dimensions | 332.3 × 139.92 mm (13.08 × 5.51 in) |
| Weight | 808 g (1.78 lb) |
| Front height, including keycap | 20.7 mm (0.81 in) |
| Rear height, including keycap | 41.34 mm (1.63 in) |
| MCU | WB32F3G71RCT6, 256 KB Flash |
| Operating environment | -10°C to 50°C |
