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CYBERBOARD R4

UNIQUE COLORS, ULTIMATE CUSTOMIZATION

CYBERBOARD is back in the form of R4 with an adjustable leaf-spring mount and four new colorways. This, in combination with numerous upgrades to its internals, makes R4 our best sounding CYBERBOARD yet.

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LED PANEL WITH CUSTOM LIGHTING EFFECTS

With thanks to our users,we were able to include custom LED panel lighting effects for each of the e-coat colorways. Of course, you can also create your own custom lighting effects through our DIY site.

E-coat finish

We prepared two colorways each finished using an electrophoretic painting process.

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Icy Silver Pro Switches included in Bundle

RGB x thock

The CYBERBOARD R4 Bundle marks the debut of our Icy Silver Pro Switch, co-developed with Tango Works.All-new Y3 composite stem, pre-lubedPolished translucent PC switch housing37gf actuation and 45gf bottom-out, light yet smoothTop level feel, sound and RGB

Adjustable Leaf Spring Mount

With our Adjustable Leaf Spring Mount, the typing feel of your keyboard no longer depends on the hardness of the Top Mount or the softness of the Gasket Mount.It's completely up to you.By mixing stainless steel and phosphorus copper leaf springs, adjusting the three gear levels and using different pads, you can achieve your perfect typing combo.

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Top-shelf hardware

2.4G hardware supported, available soon
Seamless dual-mode switching
Automatically switch between Windows and macOS key mapping
10000mAh battery, 2000+ hours of battery life
Wireless charging

8 layers for a thocky sound profile from the future

With the experience accumlated from developing AM AFA and AM Compact Touch, we believe we have found the perfect setup when it comes to keyboard internals.

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Accessories

In addition to the accessories included in the Base Kit:

Keycaps *81
Icy Silver Pro Switches *81 (linear)
Gateron Ink Black Stabilizers (screw-in, 2U*3, 6.25*1)

*The Cloud White Bundle includes 021C keycaps, other colorways include Glacier Dark keycaps.

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Updated internals, upgraded feel

The best sounding CYBERBOARD yet

With the experience accumlated from developing AM AFA and AM Compact Touch, we believe we have found the perfect setup when it comes to keyboard internals.Now, it's time to apply our findings to CYBERBOARD.

ARM Cortex-M4 32-bit STM32F402 MCU which is powerful, and equipped with 256K Flash will provide more flexibility for developers.

Get the K3 Max keymap working on VIA

Since the VIA code for the  K3 Max version is still awaiting approval from Github, it is not yet automatically recognized. Please download the appropriate keymap JSON file below, open VIA, turn on "Show Design tab" on "Settings" tab, and drag the JSON file into the “Design” tab on VIA to get the K3 Max keymap working on VIA.

K3 Max Keymap JSON Files

Suitable For All Devices

Offers a Mac layout while remaining compatible with Windows. It stands out in the market by providing the same multimedia and function key functions as Apple keyboards for Mac users, but with enhanced tactile feedback.

Additionally, you can configure different keymaps for both Mac and Windows devices. The VIA software is compatible with macOS, Windows, and Linux. The keyboard includes keycaps for both macOS and Windows, along with additional esc and enter keys, facilitating seamless switching between operating systems.

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An Epic Core Inside

A powerful ARM architecture MCU equipped with 256KB Flash will provide more flexibility for developers. The polling rate is 1000 Hz on 2.4GHz and wired modes right out of the box, which makes the latency hardly noticeable even in competitive games.

Interior Acoustic Foam 

Elevate your typing with K3 Max featuring advanced IXPE acoustic foam for silent keystrokes and enhanced comfort, coupled with resilient latex foam for superior key switch support, responsiveness, and durability. Redefining the standard for a quiet, comfortable, and responsive typing experience.

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Hot-Swappable (Optional)

We all have our unique typing preferences, that’s why we are offering hot-swappable option on the K3 Max, so you can easily hot-swap every low-profile Gateron mechanical switch in a few seconds to customize the typing experience without soldering.

*The K3 Max is currently compatible with Gateron/Keychron low-profile mechanical switches only, as QMK does NOT support low-profile optical switches.

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Low-Profile Gateron Switch

The Gateron low-profile MX 2.0 Mechanical switch is designed to enhance reliability. Gateron's reputable switches are your best choice for a precise, smooth, and reliable fingertip feel whether you prefer linear (red), clicky (blue), or something in between (brown).

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Low-Profile Double-shot PBT Keycaps

Designed for premium type feeling, the K3 Max comes with our unique double-shot PBT keycaps that made of durable non-backlight shine through PBT material with excellent oil resistance for long-term use.

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Redesigned Stabilizers

We’ve redesigned the stabilizers to make it stay on the level the same way as the switch while making sure it still delivers reliability and less wobble on the big keys like the space bar, left Shift, backspace, and Enter key.

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RGB Backlights

Comes with more than 22 types of RGB backlight settings (as well as a static white backlight option), and 14 types of backlight settings on the White Backlight version. You can further fine-tune the RGB hue, saturation, brightness, effect speed with ease.

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Ergonomic Support

Three levels of adjustable typing angle aim to provide long-lasting ergonomic wrist support.

What's in the box?

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Differences Among the Low Profile K Max, K Pro, and K Series Keyboards

What's in the box?

Keychron K6 Pro package content
Keychron K6 Pro Barebone version package content

Frequently bought together (Add-on)

ANY KEYBOARD + ADD-ON
Pay shipping fee for keyboard only. Free shipping for the add-on (Excluding the Carrying Case and Mouse). Terms here.

Select the matching variant for your product.

SPECIFICATION

 
Number of Keys: 84 (75%)
Switches: Gateron low-profile mechanical
Switch Face: North-facing
Number of Multimedia Keys: 12 
Frame Material: ABS+Aluminum frame
Keycap Material: Low-profile double-shot PBT
Layout: ANSI
Polling Rate (2.4Ghz and Wired Mode): 1000Hz
Polling Rate (BT Mode): 90Hz
N-Key Rollover (NKRO): Yes for both wireless and wired modes

*The K3 Max is currently compatible with Gateron/Keychron low-profile mechanical switches only, as QMK does NOT support low-profile optical switches.

CONNECTIVITY AND POWER


Backlit: 22 types of RGB backlight options plus endless possibilities
Battery: 1550 mAh rechargeable li-polymer battery
Wireless  Working Time (Backlit off): Up to 78  hours (Lab test result may vary by actual use)
Wireless  Working Time (RGB): Up to 40 hours (Lowest brightness)
Connection: 2.4 GHz / Bluetooth / Type-C wired
Bluetooth version: 5.1
Bluetooth Device Name: Keychron K3 Max
Compatible System: macOS / Windows / Linux

PHYSICAL UNIT


Dimension: 306 x 116 mm (12.04 x 4.56")
Weight: 525 g / 1.16 lbs
Height without keycap (front): 11 mm (0.43")
Height without keycap (rear): 15 mm (0.59")
Height incl. keycap (front): 17 mm (0.66")
Height incl. keycap (rear): 22 mm (0.86")
Typing Angle: 2.5º, 4.2º and 6.5º
MCU: ARM Cortex-M4 32-bit STM32F402 (256KB Flash)
Operating Environment: -10 to 50℃

Keychron K3 Max User Guide

Learn more about the Keychron K3 Max such as the shortcuts, VIA tutorial, factory reset, and more in the FAQ section.

All Keyboards
All Keyboards