Keychron

Keychron K3 Ultra-Slim 75% Layout Wireless Wired Mechanical Keyboard

Name: Keychron K3 Ultra-Slim 75% Layout Wireless Wired Mechanical Keyboard, Compact 84 Keys RGB LED Backlit for Mac Windows, Low Profile Gateron G Pro Blue
Brand: Keychron
SKU: B08LYKWB5Q

Status: Keychron K3 Ultra-Slim 75% Layout Wireless Wired…: Unavailable on Amazon as of 2026-10-07 04:26 UTC. SpecPicks has no in-stock listing with matching specs on file; the search below lists current offers. eBay sellers may still list this model new or used.

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Bottom line: The Keychron K3 Ultra-Slim 75% Layout Wireless Wired Mechanical Keyboard: 75% layout keeps arrows and F-keys in a tenkeyless-size footprint; main trade-off: clicky blue switches are loud in quiet shared offices.

Unavailable on Amazon as of 2026-10-07 04:26 UTC

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Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives:

Similar: MageGee Portable 60% Mechanical Gaming Keyboard — $26.99 on Amazon as of 2026-10-07 12:15 UTC (price may vary).

View Current Price — $26.99

Similar: HK GAMING GK61 Mechanical Gaming Keyboard - 61… — $29.99 on Amazon as of 2026-10-07 20:15 UTC (price may vary).

View Current Price — $29.99

Similar: cimetech Wireless Keyboard and Mouse Combo - Blue — $27.75 on Amazon as of 2026-10-07 10:15 UTC (price may vary).

View Current Price — $27.75

Original listing (currently unavailable) → Compare to similar gaming peripherals

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-07

Mike Perry — Hardware researcher since 2014. For keyboards, mice, headsets and other PC peripherals, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference. About the author →

Pros & Cons

Pros

✓ 75% layout keeps arrows and F-keys in a tenkeyless-size footprint
✓ Low-profile switches 40% slimmer for a thin aluminum body
✓ Bluetooth 5.1 pairs up to 3 devices plus USB-C wired mode
✓ Gateron G Pro Blue switches rated for 50 million keystrokes

Cons

✗ Clicky blue switches are loud in quiet shared offices
✗ 84-key layout omits a dedicated number pad
✗ Only 3 saved Bluetooth connections at a time
✗ Low-profile design limits standard keycap compatibility

SpecPicks Verdict

SpecPicks scored Keychron K3 Ultra-Slim 75% Layout Wireless Wired Mechanical Keyboard using a rating × review-volume × price-fit model applied to published specs and reviews across the gaming peripherals category. Keychron's gaming peripherals lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for gaming peripherals of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

75% LAYOUT - Crafted for productivity, the Keychron K3’s 75% layout is a compact version of tenkeyless layout. It allows users access to all the essential multimedia and function keys, but with a smaller footprint.
ULTRA-SLIM - The redesigned low profile switch is 40% slimmer than conventional switches. Together with the streamlined aluminum body makes the Keychron K3 one of the thinnest and lightweight wireless mechanical keyboards in the world.
SUITABLE FOR ALL DEVICES - With a unique Mac layout, K3 has all necessary Mac function keys, while compatible with Windows. Extra keycaps for both Windows and Mac operating system are included.
WIRELESS AND WIRED - Connect with up to 3 devices via Bluetooth and switch among them easily. With high reliable and broad compatibility Broadcom Bluetooth 5.1 chipset, the K3 is best to fit home, office and light gaming use while connecting with your smartphone, laptop and iPad. It also has wired mode with USB Type-C connection.
18 TYPES OF RGB- Charming RGB backlight with elegant keycap legends helps to type in dime environment, you can also choose other static color backlight mode. Durable Gateron mechanical switch with 50 million keystroke lifespan, providing unrivaled tactile responsiveness on the clicky blue switch.

Full Specifications

Brand	Keychron
Color	Blue Switch
Style	Contemporary
Language	English
Material	Aluminum
Style Name	Contemporary
Switch Type	Low Profile Gateron Mechanical
Connectivity	Bluetooth, USB
Model Number	K3B2
Power Source	Corded Electric
Compatibility	Switch, Mac
Built-In Media	Keyboard, Extra keycaps for Windows and Mac operating systems
Number of Keys	84
Button Quantity	84
Connection Type	Wired
Keyboard Layout	QWERTY
Mfr Part Number	K3-B2-USA
Special Feature	Lightweight
Hand Orientation	Ambidextrous
Compatible Devices	Laptop, Smartphone, Tablet
Full listing title	Keychron K3 Ultra-Slim 75% Layout Wireless Wired Mechanical Keyboard, Compact 84 Keys RGB LED Backlit for Mac Windows, Low Profile Gateron G Pro Blue Switch, Version 2

Ready to buy?

Amazon shows no buyable offer for Keychron K3 Ultra-Slim 75% Layout Wireless Wired… at the last check. A similar in-stock product is MageGee Portable 60% Mechanical Gaming Keyboard. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Similar — $26.99