Keychron
Keychron J12 HE
Released 2026
Researched from maker specs and published sources. Last checked Oct 18, 2026.
Wireless 75% Hall-effect board with rapid trigger and a gasket mount
A tri-mode 75% with Keychron Lime magnetic switches, rapid trigger, a gasket-mounted plastic case and 1000Hz polling. Evidence is Keychron's page and a listing; no standalone review found.
Sources
Our take, based on research
A wireless Hall-effect 75% on maker specs. Evidence for this exact model is Keychron's page; the only review found covers the wired J2 HE 8K sibling, so how this board feels is not independently documented.
Overview
The J12 HE is a wireless Hall-effect 75%. Keychron's page lists hot-swap Keychron Ultra-Fast Lime magnetic switches, double-shot PBT keycaps, 2.4GHz, Bluetooth and wired USB-C, 1000Hz polling, QMK with the Keychron Launcher, south-facing RGB, an ST402 MCU, plate-mounted stabilizers, a plastic gasket-mount body, three feet angles (3.5, 6.4 and 8.4 degrees) and 952 g. Keeb-finder lists it as a Hall-effect board with rapid trigger and a 342 x 148 mm footprint. No independent review turned up. For the line, a Romanian review of the wired J2 HE 8K found the plastic case sturdy, with foam layers and a steel plate, and the Lime switches smooth with a POM stem; that is a sibling, not this board.
Pros & Cons
- Hall-effect switches with rapid trigger (Keeb-finder)
- Gasket-mount plastic case and foam (Keychron; sibling review praised the sound)
- Tri-mode connectivity with QMK and Launcher
- Hot-swap, but only for Keychron's magnetic switches
- Hot-swap sockets are for Keychron's magnetic switches only
- 1000Hz polling only; the 8K models are wired
- Plastic case
- No standalone review found
Who Is This For?
- Typists and casual gamers who want adjustable actuation on a wireless 75%
- Competitive players who want 8000Hz
- Anyone who wants to use ordinary MX switches
Where to Buy
Dimensions
75%
Weight
952 g ± 10 g
Case Material
Plastic
Connectivity
Both
Plate Options
Case Colors
Software Support
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