---
product_id: 369080009
title: "K3 Ultra-Slim Hot Swappable RGB Backlit Wireless Bluetooth/Wired USB Mechanical Keyboard, 75% ISO-UK-Layout Low-Profile Optical Brown Switch 84 Keys Gaming Keyboard for Mac Windows-Version 2"
brand: "keychron"
price: "HK$1928"
currency: HKD
in_stock: true
reviews_count: 5
category: "Keychron"
url: https://www.desertcart.hk/products/369080009-k3-ultra-slim-hot-swappable-rgb-backlit-wireless-bluetooth-wired
store_origin: HK
region: Hong Kong
---

# RGB backlight Connects 3 devices Hot-swappable K3 Ultra-Slim Hot Swappable RGB Backlit Wireless Bluetooth/Wired USB Mechanical Keyboard, 75% ISO-UK-Layout Low-Profile Optical Brown Switch 84 Keys Gaming Keyboard for Mac Windows-Version 2

**Brand:** keychron
**Price:** HK$1928
**Availability:** ✅ In Stock

## Summary

> 💻 Elevate your typing game with the Keychron K3!

## Quick Answers

- **What is this?** K3 Ultra-Slim Hot Swappable RGB Backlit Wireless Bluetooth/Wired USB Mechanical Keyboard, 75% ISO-UK-Layout Low-Profile Optical Brown Switch 84 Keys Gaming Keyboard for Mac Windows-Version 2 by keychron
- **How much does it cost?** HK$1928 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/369080009-k3-ultra-slim-hot-swappable-rgb-backlit-wireless-bluetooth-wired)

## 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

- • **Ultra-Slim Design:** Experience the sleekest keyboard on the market.
- • **Robust Build Quality:** Reinforced aluminum body for durability and style.
- • **Long-lasting Performance:** Enjoy up to 70 million keystrokes with the optical brown switch.
- • **Seamless Device Switching:** Effortlessly switch between your laptop, tablet, and phone.
- • **Customizable Typing Experience:** Personalize your keystrokes without any soldering.

## Overview

The Keychron K3 is a cutting-edge ultra-slim mechanical keyboard featuring a 75% layout with 84 keys, designed for both Mac and Windows users. It boasts hot-swappable low-profile optical switches, RGB backlighting, and the ability to connect to up to three devices via Bluetooth 5.1, making it perfect for multitasking professionals. With a robust aluminum frame and customizable features, the K3 is engineered for peak productivity and a superior typing experience.

## Description

Buy

Review: Great Low-Profile Mechanical Keyboard – Compact and Well Built - I went with the red switches and they feel great, smooth, quiet, and comfortable for long typing sessions. The keyboard feels well built, is nice and compact with the 75% layout, and doesn’t take up much desk space while still keeping the important keys. The low-profile design is a big plus if you don’t like bulky mechanical keyboards. Bluetooth connectivity works well and it’s also handy that it can be used wired via USB when needed. Overall, a solid, high-quality keyboard that I’m very happy with.
Review: Very quiet for a mechanical keyboard - Good points: 1. Extremely quiet for a mechanical keyboard, not much louder than the Microsoft Sculpt membrane keyboard I had before. Note:I have the version 2 keyboard, some reviews say the version 1 is louder. 2. Nice typing feel. 3. Full size arrow keys - many small keyboards have half size up and down arrows. 4. Keys for minor characters like tilde and carat which some small keyboards leave off and are needed in coding 5. Replaceable keytops - can customise for Windows or Mac. Bad Points: 1. No vendor supplied software to manage keymapping and lighting effects. Logitetech has better software. 2. There is a mechanical switch to select between USB and Bluetooth. You can't do the first PC on USB and the second PC on Bluetooth and switch with the fn+1,2,3. This is really disappointing. 3. The Bluetooth takes a couple of seconds to connect when you switch computers or if you don't type for a while. You lose a couple of words when you start typing. This is annoying and makes the option to share the keyboard between multiple PCs less useful. This doesn't happen when you use USB - but that limits you to one PC. 4. The lights are pretty but not useful. I thought I'd be able to do things like have a mapping for a game where the direction and action keys were illuminated in different colours. No. All it does is moving light effects and constant light. Overall, it scores highly because it is quiet and it has a well thought out key layout and a nice feel but the extras like switching between multiple PCs - I use a Windows PC and a Linux one for work - and lighting are disappointing.

## 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. Personalize per-key typing experience without soldering, 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 travel distance that triggers an input faster than ever. 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 clicky 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 |
|---------------|-------|
| Brand | Keychron |
| Package Dimensions | 32.5 x 15.9 x 3.9 cm; 802 g |
| Batteries | 1 Lithium Ion batteries required. (included) |
| Item model number | BROWN-K3 |
| Manufacturer | Keychron |
| Series | Keychron K3 |
| Colour | Brown Swich |
| Power Source | Corded Electric |
| Operating System | Mac,Windows |
| Are Batteries Included | Yes |
| Lithium Battery Energy Content | 15 Watt Hours |
| Lithium Battery Packaging | Batteries contained in equipment |
| Number Of Lithium Ion Cells | 1 |
| Item Weight | 802 g |
| Guaranteed software updates until | unknown |

## Product Details

- **Brand:** Keychron
- **Colour:** Brown Swich
- **Compatible devices:** Smartphone
- **Connectivity technology:** Bluetooth, USB
- **Keyboard backlighting colour support:** RGB
- **Keyboard description:** Mechanical
- **Product dimensions:** 30.6L x 11.6W x 2.2H centimetres
- **Recommended uses for product:** Everyday Use
- **Special feature:** Backlit
- **Style:** Modern

## Images

![K3 Ultra-Slim Hot Swappable RGB Backlit Wireless Bluetooth/Wired USB Mechanical Keyboard, 75% ISO-UK-Layout Low-Profile Optical Brown Switch 84 Keys Gaming Keyboard for Mac Windows-Version 2 - Image 1](https://m.media-amazon.com/images/I/61PH2aJBSaL.jpg)

## Questions & Answers

**Q: How long is the warranty?**
A: The Keychron K3 has a 1 year warranty.

**Q: Arrived today. Are they meant to be curved? The middle section of the keyboard is not resting on the desk. Package was damaged, hence the question.**
A: Your suspicions are probably correct. 

Mine was flat as a keyboard usually is. 

Sounds like the delivery driver used it as a lever or a wheel choc

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Low-Profile Mechanical Keyboard – Compact and Well Built
*by M***. on 1 February 2026*

I went with the red switches and they feel great, smooth, quiet, and comfortable for long typing sessions. The keyboard feels well built, is nice and compact with the 75% layout, and doesn’t take up much desk space while still keeping the important keys. The low-profile design is a big plus if you don’t like bulky mechanical keyboards. Bluetooth connectivity works well and it’s also handy that it can be used wired via USB when needed. Overall, a solid, high-quality keyboard that I’m very happy with.

### ⭐⭐⭐⭐ Very quiet for a mechanical keyboard
*by T***H on 8 February 2023*

Good points: 1. Extremely quiet for a mechanical keyboard, not much louder than the Microsoft Sculpt membrane keyboard I had before. Note:I have the version 2 keyboard, some reviews say the version 1 is louder. 2. Nice typing feel. 3. Full size arrow keys - many small keyboards have half size up and down arrows. 4. Keys for minor characters like tilde and carat which some small keyboards leave off and are needed in coding 5. Replaceable keytops - can customise for Windows or Mac. Bad Points: 1. No vendor supplied software to manage keymapping and lighting effects. Logitetech has better software. 2. There is a mechanical switch to select between USB and Bluetooth. You can't do the first PC on USB and the second PC on Bluetooth and switch with the fn+1,2,3. This is really disappointing. 3. The Bluetooth takes a couple of seconds to connect when you switch computers or if you don't type for a while. You lose a couple of words when you start typing. This is annoying and makes the option to share the keyboard between multiple PCs less useful. This doesn't happen when you use USB - but that limits you to one PC. 4. The lights are pretty but not useful. I thought I'd be able to do things like have a mapping for a game where the direction and action keys were illuminated in different colours. No. All it does is moving light effects and constant light. Overall, it scores highly because it is quiet and it has a well thought out key layout and a nice feel but the extras like switching between multiple PCs - I use a Windows PC and a Linux one for work - and lighting are disappointing.

### ⭐⭐⭐⭐⭐ I love it
*by J***4 on 3 April 2023*

A very nice keyboard which is compact, well built and lovely to type on. The Gateron brown switches have the perfect balance of clickiness and smoothness while staying silent enough for taking to work. The keys are highly responsive and accurate, and I can type for hours without feeling any strain or discomfort. I love that the keyboard is Mac compatible right out of the box and super easy to switch from mac to windows back and forth. It also has extra keycaps for win/mac and there's a dark grey ESC keycap that matches the other keyboard keycaps if the red one is not your taste. I was looking for a replacement to my Razer huntsman which had silent switches but was too smooth for typing and I am very happy with this keyboard. Overall great value for money and an excellent upgrade for anyone who wants to replace their old keyboard with a modern wireless and compact keyboard to enjoy at home or on the go.

## Frequently Bought Together

- Keychron K3 Ultra-Slim Hot Swappable RGB Backlit Wireless Bluetooth/Wired USB Mechanical Keyboard, 75% ISO-UK-Layout Low-Profile Optical Brown Switch 84 Keys Gaming Keyboard for Mac Windows-Version 2
- Logitech MX Master 3S - Wireless Performance Mouse with Ultra-Fast Scrolling, Ergonomic, 8K DPI, Glass Tracking, Silent Clicks, USB-C, Bluetooth, Windows, Linux, Chrome - Dark Gray

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-26*