Keychron K3 Max SE QMK Wireless Custom Mechanical Keyboard

Keychron K3 Max SE QMK Wireless Custom Mechanical Keyboard - View 3

Keychron K3 Max SE QMK Wireless Custom Mechanical Keyboard - View 4

Keychron K3 Max SE QMK Wireless Custom Mechanical Keyboard - View 5

Keychron K3 Max SE QMK Wireless Custom Mechanical Keyboard - View 6

$62.99 ~~$104.99~~ In stock

Keychron K3 Max SE is an ultra-slim wireless custom mechanical keyboard. It supports 2.4 GHz, Bluetooth, and a wired connection. It allows anyone to master any keys or macro commands on its 75% compact layout through Keychron Launcher web app. Besides, it has included LSA (low profile spherical-angled) profile keycaps for both Windows and macOS, and users can hot-swap with mechanical switch in a breeze.

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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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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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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 (4.6 / 5 · 5 reviews)

William ★★★★★ Oct 22, 2026

The 2.4 GHz connection is rock solid, zero lag even through a wall, and the slim profile makes it feel almost like a laptop keyboard but with that satisfying mechanical click. Setup took me under five minutes and the wireless range surprised me, I can use it from across the room without any dropouts

Scarlett H. ★★★★★ Oct 21, 2026

Was looking for a low-profile option that actually feels responsive, and the hot-swappable switches make it easy to customize without soldering. The Bluetooth pairing was instant, and I've been using it wirelessly for a week without any lag.

James P. ★★★★★ Oct 20, 2026

The 2.4 GHz connection is rock-solid during gaming sessions, and the ultra-slim profile makes it a perfect fit for my desk setup. I mapped a few macros for work shortcuts, and it handled them flawlessly right out of the box.