---
product_id: 386362840
title: "Keychron K3 Ultra-Slim 75% Layout RGB Backlit Wireless Bluetooth/Wired Usb Mechanical Keyboard, Hot-Swappable Low-Profile Keychron Optical Brown Switch 84-Key Gaming Keyboard For Mac Windows-Version 2"
brand: "keychron"
price: "£3.74"
currency: GBP
in_stock: true
reviews_count: 6
url: https://www.desertcart.co.uk/products/386362840-keychron-k3-ultra-slim-75-layout-rgb-backlit-wireless-bluetooth
store_origin: GB
region: United Kingdom
---

# Bluetooth 5.1 multi-device seamless switch Hot-swappable low-profile optical switches 75% ultra-slim 84-key layout Keychron K3 Ultra-Slim 75% Layout RGB Backlit Wireless Bluetooth/Wired Usb Mechanical Keyboard, Hot-Swappable Low-Profile Keychron Optical Brown Switch 84-Key Gaming Keyboard For Mac Windows-Version 2

**Brand:** keychron
**Price:** £3.74
**Availability:** ✅ In Stock

## Summary

> ⌨️ Elevate your desk game with the ultra-slim, multi-device mechanical marvel!

## Quick Answers

- **What is this?** Keychron K3 Ultra-Slim 75% Layout RGB Backlit Wireless Bluetooth/Wired Usb Mechanical Keyboard, Hot-Swappable Low-Profile Keychron Optical Brown Switch 84-Key Gaming Keyboard For Mac Windows-Version 2 by keychron
- **How much does it cost?** £3.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/386362840-keychron-k3-ultra-slim-75-layout-rgb-backlit-wireless-bluetooth)

## Best For

- keychron enthusiasts

## Why This Product

- Trusted keychron brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Powerhouse:** Ultra-slim 75% layout with 84 keys fits perfectly on any desk without sacrificing functionality.
- • **Mac & Windows Ready:** Optimized Mac layout with included extra keycaps ensures flawless compatibility across all your devices.
- • **Vibrant RGB Ambiance:** Dynamic per-key RGB backlighting with adjustable brightness to match your mood and workspace vibe.
- • **Seamless Multi-Device Flow:** Connect and toggle effortlessly between 3 devices via Bluetooth 5.1 or wired USB-C for ultimate multitasking.
- • **Customizable Typing Experience:** Hot-swappable low-profile optical switches let you personalize tactile feedback without soldering.

## Overview

The Keychron K3 is a sleek, ultra-slim 75% mechanical keyboard featuring 84 keys with hot-swappable low-profile optical Brown switches for a tactile, responsive typing experience. It supports Bluetooth 5.1 connectivity for seamless switching between up to 3 devices and wired USB-C mode. Designed with a reinforced aluminum body, it offers durability and portability, while RGB backlighting and Mac/Windows compatibility make it a versatile choice for professionals and gamers alike.

## Description

K3 Optical RGB Backlight Brown Switch

Review: Exactly what I was looking for - I ordered too many keyboards, but this was the one that I really enjoy typing on every second. It is very compact, nice look that combines the power of mechanical keyboards with the gentle look for normal ones, swappable switches. Very easy to switch between 3 devices in addition to the ability to switch between Mac/Windows/Android in just one click. Very very highly recommended.
Review: Best purchase ! - Item exactly as described, Its perfect and I love the keyboard. Been using it for months now and its amazing

## Features

- Keychron K3, a compact 75% layout 84 keys RGB backlight hot-swappable ultra-slim wireless mechanical keyboard built for peak productivity, a great tactile typing experience, and let you personalize per-key typing experience without soldering.
- Be ready to multitask without missing a beat by connecting the K3 with up to 3 devices via the stable Bluetooth 5.1 chipset and switch between your laptop, PC, tablet and phone seamlessly. It also has wired mode with USB Type-C connection.
- With a unique Mac layout, the K3 has all the necessary Mac multimedia keys while still being compatible with Windows. Extra keycaps for both Windows and Mac operating systems are included.
- The redesigned low-profile Keychron optical switch is 40% slimmer than conventional switches with a shorter pre-travel and total travel distance that triggers an input and feedback faster than conventional/normal-profile mechanical switches. With the reinforced aluminum body (plastic bottom frame) make the K3 one of the thinnest and lightweight mechanical keyboards on the market. Comes with various RGB backlight settings, you can adjust the keyboard brightness to sync with your mood.
- You can easily hot-swap every low-profile optical switch without soldering to customize your typing experience on the K3 (*This keyboard is NOT compatible with any conventional MX style mechanical switch). The pre-installed low-profile optical Brown switch provides unrivaled tactile responsiveness with up to 70 million keystroke lifespan, and it supports NKRO on the wired mode or 6KRO on the wireless mode.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08LS6FMWC |
| Additional Features | Hot-swappable low profile Optical switches, Reinforced body structure, Two level adjustable rubber feet |
| Antenna Location | Gaming, Office |
| Best Sellers Rank | #68,053 in Computers ( See Top 100 in Computers ) #1,934 in Computer Keyboards |
| Brand | Keychron |
| Built-In Media | USB Cable |
| Button Quantity | 84 |
| Color | Low-Profile Keychron Optical Brown Switch |
| Compatible Devices | Laptop, PC, Tablet |
| Compatible devices | Laptop, PC, Tablet |
| Connectivity Technology | Bluetooth & USB, Wi-Fi |
| Connectivity technology | Bluetooth & USB, Wi-Fi |
| Customer Reviews | 4.3 out of 5 stars 392 Reviews |
| Enclosure Material | Aluminum |
| Generation | 2 |
| Hand Orientation | Ambidextrous |
| Item Dimensions L x W x H | 11.6L x 30.6W x 2.2H centimeters |
| Item Weight | 0.4 Kilograms |
| Keyboard Backlighting Color Support | RGB |
| Keyboard Description | Gaming |
| Keyboard Layout | QWERTY |
| Keyboard description | Gaming |
| Manufacturer | Keychron |
| Model Name | K3 |
| Model Number | K3E |
| Number of Keys | 84 |
| Number of Sections | 5 |
| Power Source | Rechargeable Battery |
| Recommended uses for product | Gaming, Office |
| Series Number | 3 |
| Special features | Hot-swappable low profile Optical switches, Reinforced body structure, Two level adjustable rubber feet Special features Hot-swappable low profile Optical switches, Reinforced body structure, Two level adjustable rubber feet See more |
| Style Name | Classic |
| Switch Type | Low-Profile Keychron Optical Brown Switch |
| Theme | No theme |
| Unit Count | 1 Count |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** Keychron
- **Compatible devices:** Laptop, PC, Tablet
- **Connectivity technology:** Bluetooth & USB, Wi-Fi
- **Keyboard description:** Gaming
- **Recommended uses for product:** Gaming, Office

## Images

![Keychron K3 Ultra-Slim 75% Layout RGB Backlit Wireless Bluetooth/Wired Usb Mechanical Keyboard, Hot-Swappable Low-Profile Keychron Optical Brown Switch 84-Key Gaming Keyboard For Mac Windows-Version 2 - Image 1](https://m.media-amazon.com/images/I/61DgV4JlufL.jpg)
![Keychron K3 Ultra-Slim 75% Layout RGB Backlit Wireless Bluetooth/Wired Usb Mechanical Keyboard, Hot-Swappable Low-Profile Keychron Optical Brown Switch 84-Key Gaming Keyboard For Mac Windows-Version 2 - Image 2](https://m.media-amazon.com/images/I/71d4gFNyxoL.jpg)
![Keychron K3 Ultra-Slim 75% Layout RGB Backlit Wireless Bluetooth/Wired Usb Mechanical Keyboard, Hot-Swappable Low-Profile Keychron Optical Brown Switch 84-Key Gaming Keyboard For Mac Windows-Version 2 - Image 3](https://m.media-amazon.com/images/I/61BXZ-4e8xS.jpg)
![Keychron K3 Ultra-Slim 75% Layout RGB Backlit Wireless Bluetooth/Wired Usb Mechanical Keyboard, Hot-Swappable Low-Profile Keychron Optical Brown Switch 84-Key Gaming Keyboard For Mac Windows-Version 2 - Image 4](https://m.media-amazon.com/images/I/61QyfX3n4VS.jpg)
![Keychron K3 Ultra-Slim 75% Layout RGB Backlit Wireless Bluetooth/Wired Usb Mechanical Keyboard, Hot-Swappable Low-Profile Keychron Optical Brown Switch 84-Key Gaming Keyboard For Mac Windows-Version 2 - Image 5](https://m.media-amazon.com/images/I/51RSx8hbPuL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: When will the brown optical switches be available on the k3 v2 hot-swappable rgb version?**
A: Hello,
Thanks for your kind support.
Here is the link of RGB K3 mechanical keyboard with brown optical switches version 2: https://www.amazon.com/dp/B08LS6FMWC?ref=myi_title_dp
Hope it helps.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Exactly what I was looking for
*by A***R on 22 September 2022*

I ordered too many keyboards, but this was the one that I really enjoy typing on every second. It is very compact, nice look that combines the power of mechanical keyboards with the gentle look for normal ones, swappable switches. Very easy to switch between 3 devices in addition to the ability to switch between Mac/Windows/Android in just one click. Very very highly recommended.

### ⭐⭐⭐⭐⭐ Best purchase !
*by S***D on 19 April 2023*

Item exactly as described, Its perfect and I love the keyboard. Been using it for months now and its amazing

### ⭐⭐⭐⭐⭐ Quality built is amazing
*by A***F on 16 April 2023*

Nice one

## Frequently Bought Together

- Keychron K3 Ultra-Slim 75% Layout RGB Backlit Wireless Bluetooth/Wired USB Mechanical Keyboard, Hot-Swappable Low-Profile Keychron Optical Brown Switch 84-Key Gaming Keyboard for Mac Windows-Version 2
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**Shop now:** [https://www.desertcart.co.uk/products/386362840-keychron-k3-ultra-slim-75-layout-rgb-backlit-wireless-bluetooth](https://www.desertcart.co.uk/products/386362840-keychron-k3-ultra-slim-75-layout-rgb-backlit-wireless-bluetooth)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-24*