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Keychron K0 Max QMK Wireless Custom Number Low-Profile RGB Backlit (Hot-Swappable) Banana Switch Keypad, 2.4 GHz & Bluetooth 5.3 Connection, 1000Hz Polling Rate - Retro Version
Keychron

Keychron K0 Max QMK Wireless Custom Number Low-Profile RGB Backlit (Hot-Swappable) Banana Switch Keypad, 2.4 GHz & Bluetooth 5.3 Connection, 1000Hz Polling Rate - Retro Version

Bottom line: The Keychron K0 Max QMK Wireless Custom Number Low-Profile RGB Backlit is a specs-and-price decision rather than a crowd-consensus one in the controllers & gamepads category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For PC and console controllers, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ Backed by Keychron's warranty and support channels

Cons

  • ✗ Check the listed dimensions, connectors and platform compatibility against your setup before ordering
  • ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

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SpecPicks Verdict

SpecPicks scored Keychron K0 Max QMK Wireless Custom Number Low-Profile RGB Backlit… using a rating × review-volume × price-fit model applied to published specs and reviews across the controllers & gamepads category. Keychron's controllers & gamepads 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 controllers & gamepads 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

  • 27-Key Wireless Numpad: The Keychron K0 Max is a low-profile 27-key numpad with a macro column and rotary knob. Use it as a standalone numeric pad or a customizable keyset with QMK support. Featuring tri-mode wireless, hot-swap support, and acoustic foams, it boosts workflow and productivity.
  • Tri-Mode Connection: The K0 Max supports Bluetooth 5.3, 2.4 GHz wireless, and Type-C wired connections. Seamlessly switch between up to three devices, ensuring fast, stable, and flexible connectivity for both professional tasks and personal use across multiple setups.
  • Launcher Web Configurator: Powered by open-source QMK firmware, the K0 Max offers endless customization. Remap keys, set macros, and define shortcuts via the Keychron Launcher web app—no downloads required. Configure your numpad online anywhere with ease and total flexibility.
  • Hot-Swappable Milk POM Switches: Equipped with Keychron's Milk POM switches, engineered with POM and POK for a deep, resonant sound. Every switch is hot-swappable, allowing effortless customization without soldering—perfect for tailoring your typing and sound experience.
  • Dynamic RGB Backlights: With up to 22 RGB backlight effects, the K0 Max lets you match your setup to your mood. Easily fine-tune hue, saturation, brightness, and speed for a personalized lighting experience that enhances both work and play environments.

Full Specifications

BrandKeychron
ColorBanana Switch
LanguageEnglish
MaterialPlastic
Model NameKeychron K0 Max
Unit Count1 Count
Switch TypeTactile
ConnectivityBluetooth, 2.4GHz
Model NumberK0M-M4
Power SourceBattery Powered
CompatibilitySwitch
Built-In MediaExtension Adapter for Receiver x 1, Keycap Puller, Type-A 2.4 GHz Receiver x 1, Type-A to Type-C x 1
Number of Keys27
Connection TypeWired
Keyboard LayoutQWERTY
Special FeatureHot-Swappable, Low-Profile Key, RGB Backlights
Antenna LocationBusiness, Gaming, Personal
Hand OrientationAmbidextrous
Compatible DevicesGaming Console, Laptop, PC, Smartphone, Tablet
Enclosure MaterialPlastic

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Keychron K0 Max QMK Wireless Custom Number Low-Profile RGB Backlit (Hot-Swappable) Banana Switch Keypad, 2.4 GHz & Bluetooth 5.3 Connection, 1000Hz Polling Rate - Retro Version is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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Keychron K0 Max QMK Wireless Custom Number Low-Profile RGB Backlit (Hot-Swappable) Banana Switch Keypad, 2.4 GHz & Bluetooth 5.3 Connection, 1000Hz Polling Rate - Retro Version
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