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Keychron K4 Ultra 8K Wireless Mechanical Keyboard 96% with Numpad, 2.4 GHz/Bluetooth/Wired, 600h Battery Life ZMK Launcher, RGB Hot-Swappable with Apex Red Switches, PBT Keycaps, Mac Windows Linux
Keychron

Keychron K4 Ultra 8K Wireless Mechanical Keyboard 96% with Numpad

Bottom line: The Keychron K4 Ultra 8K Wireless Mechanical Keyboard 96% with Numpad is a specs-and-price decision rather than a crowd-consensus one in the gaming peripherals category, priced around $114.99 on Amazon as of 2026-10-08. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

$114.99

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Buy on Amazon — $114.99 Compare to similar gaming peripherals

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.

*Price sourced from Amazon.com. Last updated 2026-10-08. Price and availability subject to change.

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 K4 Ultra 8K Wireless Mechanical Keyboard 96% with Numpad 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.

Key Features

  • Ultra-Fast 8000Hz Performance in 96% Layout Keyboard: Built for speed and productivity, the K4 Ultra 8K delivers an ultra-responsive experience with an 8000 Hz polling rate in both 2.4 GHz wireless and wired modes. Its compact 96% layout keeps the number pad, function row, arrow keys, and navigation keys while saving desk space, making it ideal for work and gaming.
  • Tri-Mode Connectivity & Multi-System Support: Connect via low-latency 2.4 GHz wireless, Bluetooth, or USB-C wired mode. Pair with up to 3 devices via Bluetooth 5.2 and switch easily between your computer, phone, and tablet. Fully supports macOS, Windows and Linux for flexible cross-platform productivity.
  • Long-Lasting Battery & South-Facing RGB: With optimized firmware and an enhanced circuit design, the K4 Ultra 8K delivers up to 600 hours of battery life with backlight off at an 8000 Hz polling rate, giving you long-lasting wireless performance. South-facing RGB backlighting adds customizable lighting effects for different setups and moods.
  • ZMK & Customization via the Keychron Launcher: Powered by the ZMK firmware, you can effortlessly remap keys, create macros, adjust polling rate and personalize RGB lighting to suit your gaming or workflow needs via the Keychron Launcher Web App — no software installation required. Please use the latest version of Chrome, Opera, or Edge browser to open the Launcher.
  • Hot-Swappable & Premium Build: The K4 Ultra 8K wireless mechanical keyboard features a hot-swappable switch design, allowing you to easily replace pre-lubed Keychron Apex switches or other 3-pin and 5-pin MX mechanical switches in seconds and customize your typing experience without soldering. Double-shot PBT keycaps provide a durable, textured typing feel.

Full Specifications

BrandKeychron
ColorKeychron Apex Red Switch
LanguageEnglish
MaterialPlastic
Unit Count1 Count
Switch TypeLinear
ConnectivityBluetooth, USB-C, 2.4GHz
Power SourceBattery Powered
CompatibilitySwitch, Mac, Linux
Built-In Media1 x Extension Adapter for Receiver, 1 x Screwdriver & 1 x Hex Key, 1 x Type-A 2.4GHz Receiver, 1 x Type-C Cable & 1 x Type-A to Type-C Adapter, Keycap Puller
Connection TypeWired
Keyboard LayoutQWERTY
Special Feature600H Battery Life, 8000Hz Polling Rate, Ergonomic, Hot-Swappable, Programmable Keys
Antenna LocationBusiness, Education, Everyday Use, Gaming, Programming
Compatible DevicesLaptop, PC, Smartphone, Tablet
Enclosure MaterialPlastic
Additional Features600H Battery Life, 8000Hz Polling Rate, Ergonomic, Hot-Swappable, Programmable Keys
Keyboard DescriptionMechanical
Warranty Description1
Connectivity Technology2.4 GHz, Bluetooth, USB-C
Full listing titleKeychron K4 Ultra 8K Wireless Mechanical Keyboard 96% with Numpad, 2.4 GHz/Bluetooth/Wired, 600h Battery Life ZMK Launcher, RGB Hot-Swappable with Apex Red Switches, PBT Keycaps, Mac Windows Linux

Ready to buy?

Keychron K4 Ultra 8K Wireless Mechanical Keyboard 96% with Numpad, 2.4 GHz/Bluetooth/Wired, 600h Battery Life ZMK Launcher, RGB Hot-Swappable with Apex Red Switches, PBT Keycaps, Mac Windows Linux 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.

Buy on Amazon — $114.99

*Price sourced from Amazon.com. Last updated 2026-10-08. Price and availability subject to change.

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Keychron K4 Ultra 8K Wireless Mechanical Keyboard 96% with Numpad, 2.4 GHz/Bluetooth/Wired, 600h Battery Life ZMK Launcher, RGB Hot-Swappable with Apex Red Switches, PBT Keycaps, Mac Windows Linux
$114.99
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