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Product guide

Keychron K3 HE Low-Profile Wireless Hall Effect Keyboard, UK Layout

Hall Effect Layout: The Keychron K3 HE is a low-profile wireless mechanical keyboard with magnetic switches, rapid trigger and three connection modes. Its browser-based Launcher controls actuation and key behaviour, making it especially relevant to gaming and custom-key users who also want a compact typing profile.

At a glance

Rapid trigger and adjustable actuation settings are presented as ways to customise how keys activate and reset during fast-paced play.
Connect by 2.4 GHz, Bluetooth or USB-C. The listing claims a 1000 Hz polling rate and connection to up to three devices.
QMK and the browser-based Launcher support key remapping, macros and shortcuts, with Launcher also offering actuation and rapid-trigger configuration.
Low-profile magnetic switches, RGB lighting and hot-swap functionality combine gaming-focused controls with a slim keyboard format.

Price

£91.99Save 29%

Reference price: ~~£129.99~~

Price checked: 12 Nov 2026

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Often bought together

Keychron K3 HE Wireless Mechanical Keyboard Low Profile - Hall Effect Magnetic Linear Switch, Rapid Trigger, 2.4GHz/Bluetooth

Pros and cons

Pros

Three listed connection options suit switching between wireless use and a USB-C connection.
Customisable actuation, rapid trigger and programmable keys offer control beyond a fixed mechanical switch setup.
Low-profile construction may suit buyers looking for a slimmer keyboard than a conventional-height mechanical model.

Cons

The listing describes a battery-powered design but gives no battery capacity or operating-time figure, so endurance cannot be assessed from these details.

Technical specifications

19 specifications

Identity and layout
Brand	Keychron
Keyboard layout	QWERTY
Colour	Black - Low Profile Switch

Connectivity and controls
Wireless connection listed	2.4 GHz, Bluetooth, USB-C
Compatible devices	Laptop, PC, Tablet
Polling rate	1000 Hz
Multi-device connection claim	connect up to three devices

Switches and typing
Switch type	Keychron Ultra-fast Lime Low-Profile magnetic switches
Switch material	POM material
Low-profile switch thickness	12.1mm
Front edge profile	22.0mm
Keycap material	PBT

Lighting and programming
Backlighting	RGB
Lighting settings	22+ RGB backlight settings
Firmware and software	QMK firmware
Configuration app	Keychron Launcher web app

Power and battery
Power configuration	Battery Powered

Materials and protection
Material listed	Aluminium
Frame construction claim	aluminum with wooden frames

What to know before buying

Listing details to confirm

The title specifies UK layout, while the product details list QWERTY without confirming the regional key arrangement. The material and kit details are also inconsistent: the listing separately names aluminium and aluminium with wooden frames, and the explicit contents list gives a keycap puller, USB cable and manual while the feature copy mentions Lime magnetic switches without clarifying whether that refers to the keyboard's fitted switches or an extra item. Confirm the selected configuration and contents before ordering.

What’s in the box

Included

Keycap puller
USB cable
User manual

Who is it for?

A good fit for

Gamers who want rapid-trigger behaviour and adjustable actuation settings.
Users seeking a low-profile mechanical keyboard with wireless and USB-C connection choices.
People who want to remap keys or configure macros through QMK and the browser-based Launcher.

Less suited to

Buyers who need a confirmed battery runtime before choosing a wireless keyboard.
Buyers who require an explicitly verified UK regional key layout or a fully clarified kit list.

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Customer reviews on Amazon

5 / 5 · 1 ratings

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The supplied rating evidence is a single five-star rating, which is too limited to establish broader customer experience or identify particular strengths and concerns. Consider the listing's switch, connection and customisation claims on their own merits rather than treating that rating as confirmation of performance.

Frequently asked questions

What connection options does the K3 HE list?

The listing gives 2.4 GHz, Bluetooth and USB-C. It also claims a 1000 Hz polling rate and connection to up to three devices.

Can the keys be customised?

The listing describes QMK remapping, macros and shortcuts, with Keychron Launcher for configuring actuation and rapid trigger in a browser.

Is the keyboard confirmed to have a UK layout?

The title says UK layout, but the details only specify QWERTY. Confirm the selected layout before buying if the exact regional key arrangement matters.

What is included in the box?

The explicit contents list names a keycap puller, USB cable and user manual. The listing does not clearly resolve whether its mention of Lime magnetic switches means fitted switches or an additional item.

Additional product photo 3