Keychron K4 QMK Wireless Mechanical Keyboard (ISO Layout) - Version 3

Keychron K4 QMK Wireless Mechanical Keyboard (ISO Layout) - Version 3 - View 3

Keychron K4 QMK Wireless Mechanical Keyboard (ISO Layout) - Version 3 - View 4

Keychron K4 QMK Wireless Mechanical Keyboard (ISO Layout) - Version 3 - View 5

Keychron K4 QMK Wireless Mechanical Keyboard (ISO Layout) - Version 3 - View 6

$68.99 ~~$114.99~~ In stock

Keychron K4 QMK Wireless Mechanical Keyboard (Version 3) allows anyone to master any keyboard keys or macro commands through Keychron Launcher web app, it has included keycaps for both Windows and macOS, and users can hot-swap with any MX mechanical switch in a breeze.

No discount code can be used for the K4 Version 3.

ISO options: UK, German, Swiss, Nordic, French, and Spanish layouts.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

William ★★★★★ Oct 21, 2026

The build quality is solid, and switching between Windows and Mac keycaps was easy right out of the box. I’ve been using the web app to set up macros for my design work, and it’s been flawless so far. Makes typing feel much more responsive than my old keyboard.

James ★★★★★ Oct 20, 2026

The QMK web launcher made remapping my Caps Lock to something useful dead simple, no software install needed. Swapped in the included Windows keycaps and it works flawlessly with both my PC and Mac. Solid build, satisfying thock out of the box.

Henry C. ★★★★★ Oct 18, 2026

I was a bit overwhelmed by the default keycaps, but after a few hours of customizing macros in the Launcher web app, it feels like my own personal command center. The Bluetooth connection to my PC has been rock-solid even through a concrete wall.