Keychron K8M-J3 Max 80% TKL Wireless Mechanical Keyboard Black QMK VIA RGB 4000mAh Battery 1000Hz Polling

Keychron K8M-J3 (Black) is a tenkeyless (TKL) 80% wireless custom mechanical keyboard featuring QMK/VIA programmability, gasket-mounted design, and Gateron Jupiter Brown switches optimized for office productivity and gaming.​

Keyboard Performance

Hot-swappable Gateron Jupiter Brown mechanical switches, ABS+aluminum frame with multiple acoustic foams (IXPE, PET, latex) for premium sound dampening, 1000Hz polling rate (2.4GHz/wired modes), south-facing RGB backlighting, full NKRO support.​

Connectivity & Features

Tri-mode wireless connectivity with 2.4GHz USB dongle + Bluetooth 5.1 (3 devices) + USB-C wired, ARM Cortex-M4 MCU (256KB Flash), 12 multimedia keys, OSA-profile double-shot PBT keycaps, three adjustable typing angles (3.4°/7.7°/10.7°).​

Build & Battery

Compact black chassis (354×124×30mm, 1308g), 4000mAh rechargeable LiPo battery (190hrs no backlight/100hrs RGB low brightness), operates -10 to 50°C, 2-year warranty.​