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Keychron J4 QMK RGB Wireless Hot-Swappable Mechanical Keyboard - Brown Switch (KBKCKJ4H3Z)

87‑key ANSI mechanical keyboard with brown switches (north‑facing), double‑shot PBT keycaps (Cherry/MDA profile), 12 multimedia keys, RGB backlight (22 modes), 1000 Hz polling, Bluetooth 5.2 & 2.4 GHz, 3750 mAh battery (≈288 h off, 156 h RGB).

Keychron J4 QMK RGB Wireless Hot-Swappable Mechanical Keyboard - Brown Switch (KBKCKJ4H3Z)
  • Keyboards-Keychron-J4-QMK-RGB-Wireless-Hot-Swappable-Mechanical-Keyboard-Brown-Switch-KBKCKJ4H3Z-4
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SPECIFICATIONS:

Number of Keys

87 (80%)

Switches

Mechanical - Brown

Switch Face

North-facing

Number of Multimedia Keys

12

Frame Material

ABS

Keycap Material

Double-shot PBT

Keycap Profile

Cherry Profile / MDA Profile

Layout

ANSI

Polling Rate (2.4GHz and Wired Mode)

1000Hz

Polling Rate (BT Mode)

125Hz

N-Key Rollover (NKRO)

Yes for both wireless and wired modes

Backlit

22 types of RGB backlight options plus endless possibilities

Battery

3750 mAh rechargeable li-polymer battery

Wireless Working Time (Backlit off)

Around 288 hours (Lab test result may vary by actual use)

Wireless Working Time (RGB)

Around 156 hours

Connection

2.4 GHz / Bluetooth / Type-C wired

Bluetooth version

5.2

Bluetooth Device Name

Keychron J4

Compatible System

Windows / Linux / macOS

Dimension

365.72 x 137.71mm (14.40 x 5.42")

Weight

870 g / 1.92 lbs

Height incl. keycap (front)

28.18 mm (1.11")

Height incl. keycap (rear)

37.81 mm (1.49")

Typing Angle

4.5º and 9.6º

MCU

WB32F3G71RCT6 (256KB Flash)

Operating Environment

-10 to 50℃

 


  • Product Name:
    Keychron J4 QMK RGB Wireless Hot-Swappable Mechanical Keyboard - Brown Switch (KBKCKJ4H3Z)
  • Model Number:
    KBKCKJ4H3Z
  • Brand:
    Keychron Keychron
  • Warranty Period:
    1 Year

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