Keychron - K4 Max QMK Wireless Mechanical Keyboard
Keychron - K4 Max QMK Wireless Mechanical Keyboard
Keychron - K4 Max QMK Wireless Mechanical Keyboard
Keychron - K4 Max QMK Wireless Mechanical Keyboard
Keychron - K4 Max QMK Wireless Mechanical Keyboard
Keychron - K4 Max QMK Wireless Mechanical Keyboard
Keychron - K4 Max QMK Wireless Mechanical Keyboard

Keychron

Keychron - K4 Max QMK Wireless Mechanical Keyboard

£115.00
Type
Type: Fully Assembled
Choose Switches
Choose Switches: Red
Dispatch Time
Business Transparency: How we operate?

As a small UK business, we handle every order ourselves — no drop shipping involved. Every item we send out goes through a quality control check to make sure you receive exactly what you ordered and in the condition you’d expect.

Some of our products are sourced from local UK suppliers, while others come directly from manufacturers we trust. The dispatch times for each item are clearly shown on the product listing, so you’ll always know whether it’s available for same-day dispatch or if it needs a little extra time before shipping.

We also pride ourselves on providing the best customer support possible. When you contact us, you’ll always be speaking directly to one of the three people who run this business — no automated bots, no outsourced call centres, just real help from people who know and love the products we sell.

Product details

Keychron K4 Max: Full-Size Power in a Compact Form

Keychron K4 Max: Full-Size Power in a Compact Form

96% Layout: Full Functionality, Minimal Footprint

For many workflows, a number pad isn't a luxury—it's essential. But for desks where every inch counts, a traditional full-size keyboard is often too much. Entering the space with a smarter solution is Keychron's K4 Max Wireless Mechanical Keyboard. It delivers the full-size functionality you need, including a complete number pad, in a compact 96% layout that respects your desk space.

At its core is a multi-layer acoustic design built to refine every keystroke. The keyboard incorporates a six-layer filling structure to minimise unwanted noise and shape the typing sound. This includes IXPE acoustic foam, a PET film, and resilient EPDM foam for sound dampening. Complementing the foam array is a steel plate, which provides responsive feedback and adds a satisfying weight for enhanced stability during intense work or gaming sessions.

Compact 96% Layout

Performance Without Compromise

We covered the acoustics. Now, for the performance. The K4 Max gives you three ways to connect: stable 2.4 GHz wireless, Bluetooth 5.1 for up to three devices, and a classic wired USB-C connection. For competitive gaming and latency-sensitive work, both the 2.4 GHz and wired modes deliver a 1000 Hz polling rate, ensuring your inputs are registered instantly. The 4000mAh battery provides up to 190 hours of use with the backlighting off, keeping you focused on the task, not the charge level.

Tri-Mode Connectivity
Keychron K4 Max Full View

Make It Your Own with QMK & VIA

Working in harmony with each of the K4 Max's connectivity modes, QMK firmware gives you the power to personalise with precision. Remap keys, create complex macros, control the 22+ RGB lighting effects, and much, much more. Even better: do it all through the user-friendly Keychron Launcher web app, which makes it easier than ever to unlock the full potential of QMK and VIA. The customisation doesn't stop at the software. The board features hot-swappable sockets, allowing you to change your mechanical switches without any soldering. You build your workflow a certain way—why should your keyboard be any different?

Hot-Swappable Design
K4 Max angle view K4 Max connectivity

Core Features

Build and Customization

96% Compact Layout. Get a number pad and all your function keys while saving valuable desk space.

Hot-Swappable Sockets. Change your switches on the fly to tailor the typing feel exactly to your preference. No soldering required.

Multi-Layer Acoustic Dampening. A six-layer foam and film structure absorbs noise for a cleaner, more focused typing sound.

Connectivity and Software

Triple-Mode Connectivity. Switch seamlessly between a 1000 Hz 2.4 GHz connection, Bluetooth 5.1, and wired USB-C.

QMK/VIA Programmability. Full control over keymaps, macros, and lighting through an easy-to-use web-based interface.

Double-Shot PBT Keycaps. Made from durable, oil-resistant PBT in a comfortable OSA profile, these keycaps are built to last.

Switches and Feel

The fully assembled version comes equipped with Keychron's own Super Mechanical Switches, rated for up to 50 million keystrokes. The south-facing RGB backlight design prevents interference when installing alternative Cherry-profile keycaps, giving you endless customisation options.

Keychron Super Red: A smooth linear switch with consistent, quiet travel from top to bottom.

Keychron Super Brown: A tactile switch that provides a noticeable bump on actuation without a loud click.

Keychron Super Banana: A pre-lubed tactile switch with a distinct, satisfying bump for precise feedback.

Keychron Super Switches

Frequently Asked Questions

What is the main benefit of a 96% layout?

The 96% layout provides nearly all the keys of a full-size keyboard, including the number pad, in a much smaller footprint. It achieves this by eliminating most of the empty space between key clusters, making it ideal for users who need full functionality but have limited desk space.

What is QMK/VIA?

QMK is a powerful open-source firmware that allows for deep customisation of a keyboard's functions. VIA is a graphical user interface that makes it easy to program a QMK-enabled keyboard without needing to write code. You can remap any key, create macros, and adjust lighting all through a simple app.

What does "hot-swappable" mean?

A hot-swappable keyboard has sockets on its circuit board that allow you to pull out and plug in new switches without any soldering. This makes it easy to try different switch types (linear, tactile, clicky) or replace a faulty switch.

Why is a 1000 Hz polling rate important?

Polling rate measures how often the keyboard reports inputs to the computer. A 1000 Hz polling rate means it reports 1,000 times per second (every 1 millisecond). This is especially important for fast-paced gaming where instant response is critical.

Got questions? 🤔

Do you have any questions, or unsure if this product is compatible with your setup?

Specifications

Layout: 96% (full number pad, compact size)

Connectivity: USB-C (wired) / 2.4 GHz wireless (1000 Hz polling) / Bluetooth 5.1

Keycap Material: Double-shot PBT (OSA profile)

Switch Support: Hot-swappable (3-pin & 5-pin) in supported versions

Firmware: QMK / Keychron Launcher support for customisation

Acoustic Build: Multi-layer foam (IXPE, PET, EPDM) for enhanced sound & feel

Backlight: Full RGB (or white backlight variant)

Inclusion: Keyboard kit only or fully assembled variant (depends on model)

Inside the box

1 × Keychron K4 Max Keyboard (select variant)
Includes: USB-C cable, additional keycaps for Mac/Windows systems, keycap puller, switch puller

Compatibility

Compatible with Mac, Windows, Linux systems

Hot-swappable models support most MX-style switches (including Cherry, Gateron, Kailh)

Multi-device Bluetooth switching and full layout support for productivity and gaming

Warranty

1-year manufacturer’s warranty