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Keychron K4 Wireless Bluetooth/USB Wired Gaming Mechanical Keyboard, Compact 100 Keys RGB LED Backlit Gateron Brown Switch N-Key Rollover, Aluminum Frame for Mac Windows, Version 2
Keychron

Keychron K4 Wireless Bluetooth/USB Wired Gaming Mechanical Keyboard

Bottom line: The Keychron K4 Wireless Bluetooth/USB Wired Gaming Mechanical Keyboard: 96% layout keeps a full number pad in a compact 100-key footprint; main trade-off: wireless mode drops to 6KRO; full N-key rollover needs the USB-C cable.

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

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.

Pros & Cons

Pros

  • ✓ 96% layout keeps a full number pad in a compact 100-key footprint
  • ✓ Pairs with up to 3 devices over Bluetooth, plus a USB-C wired mode
  • ✓ 4000 mAh battery rated for up to 72 hrs of typing or 7 days at 8 hrs/day
  • ✓ Mac-native layout with Windows keycaps included in the box
  • ✓ Tactile Gateron Brown switches rated for 50 million keystrokes

Cons

  • ✗ Wireless mode drops to 6KRO; full N-key rollover needs the USB-C cable
  • ✗ Keychron pitches the Bluetooth for light gaming, not competitive play
  • ✗ Wired mode connects to only one device at a time
  • ✗ Mac-first legends mean Windows users need to swap keycaps

Manufacturer description

The Keychron K4 Version 2 fits a full number pad into a compact 96% layout. That gives you 100 keys for spreadsheets, coding and data entry while taking up less desk space than a full-size board. This wireless mechanical keyboard pairs with up to 3 devices over Bluetooth on a Broadcom chipset, so you can switch between your laptop, iPad and smartphone in seconds. When you want a cable, it also connects to one device over USB-C. The Gateron Brown switches give a tactile bump without the click, and each switch is rated for 50 million keystrokes. The K4 ships with a Mac layout and all the Mac…

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SpecPicks Verdict

SpecPicks scored Keychron K4 Wireless Bluetooth/USB Wired Gaming 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.

Frequently Asked Questions

How many devices can the Keychron K4 connect to at once?

Up to 3 devices over Bluetooth, and you can switch between them quickly. It can also connect to a single device with a USB-C cable.

How long does the K4 battery last on a charge?

The 4000 mAh battery is rated for up to 72 hours of continuous typing, or up to 7 days of normal use at 8 hours per day. Backlight use and your own habits will change the real-world runtime.

Does the Keychron K4 work with Windows or only Mac?

Both. It ships with a Mac layout and all the Mac function keys, works with Windows too, and includes extra keycaps for both operating systems.

Is the Keychron K4 good for gaming?

It suits casual play. You get N-key rollover over the USB-C cable and 6KRO over Bluetooth, and Keychron recommends the Bluetooth connection for light gaming. For competitive games, use the wired mode.

What switches does this K4 use, and how durable are they?

This version uses Gateron Brown switches, which give a tactile bump without a click. Each switch is rated for a 50 million keystroke lifespan.

Key Features

  • A 96% layout (100-key) wireless mechanical keyboard with a number pad in a compact design that’s built for peak productivity and a great tactile typing experience.
  • Connect the K4 with up to 3 devices via Bluetooth or to a single device with the USB Type-C wired option. Pair it up with your smartphone, laptop and iPad, and switch amongst the devices swiftly. It offers a highly reliable and broad compatibility Broadcom Bluetooth chipset that is best for home, office and light gaming uses.
  • With a unique Mac layout, the K4 has all the necessary Mac function keys while still being compatible with Windows. Extra keycaps for both Windows and Mac operating systems are included.
  • The K4 can last up to 72 hours typing, or up to 7 days of normal use (8 hrs/day) with a 4000 mAh big battery; one of the most powerful among mechanical keyboards. N-key rollover (NKRO) on wired mode or 6KRO on wireless mode.
  • The keyboard has enchanting RGB backlight with modern keycap legends to help you type in dim environments; available in 15+ types of flashing light mode. Durable Gateron mechanical switch with a 50 million keystroke lifespan to provide an unrivaled tactile responsiveness on the tactile Brown switch.

Full Specifications

BrandKeychron
ColorGateron Brown Switch
StyleContemporary
Themekeyboards
Generation2
Model NameK4
Style NameContemporary
Unit Count1 Count
Switch TypeGateron Brown Switch
ConnectivityBluetooth, USB
Model NumberK4C3
Power SourceBattery Powered
CompatibilitySwitch, Mac
Series Number4
Built-In MediaKeycap Puller, USB Cable
Number of Keys99
Button Quantity99
Connection TypeWired
Keyboard LayoutQWERTY
Mfr Part NumberK4C3
Full listing titleKeychron K4 Wireless Bluetooth/USB Wired Gaming Mechanical Keyboard, Compact 100 Keys RGB LED Backlit Gateron Brown Switch N-Key Rollover, Aluminum Frame for Mac Windows, Version 2

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Keychron K4 Wireless Bluetooth/USB Wired Gaming Mechanical Keyboard, Compact 100 Keys RGB LED Backlit Gateron Brown Switch N-Key Rollover, Aluminum Frame for Mac Windows, Version 2 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 K4 Wireless Bluetooth/USB Wired Gaming Mechanical Keyboard, Compact 100 Keys RGB LED Backlit Gateron Brown Switch N-Key Rollover, Aluminum Frame for Mac Windows, Version 2
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