---
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: "1073 zł"
currency: PLN
in_stock: true
reviews_count: 8
category: "Keychron"
url: https://www.desertcart.pl/products/369080009-k3-ultra-slim-hot-swappable-rgb-backlit-wireless-bluetooth-wired
store_origin: PL
region: Poland
---

# Customizable RGB backlighting Bluetooth 5.1 multi-device pairing 75% compact 84-key layout 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:** 1073 zł
**Availability:** ✅ In Stock

## Summary

> ⌨️ Elevate your desk game with the ultra-slim, multi-device Keychron K3 — where style meets unstoppable productivity.

## 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?** 1073 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/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

- • **Mac & Windows Ready:** Includes extra keycaps and dedicated multimedia keys for both OS, so you never miss a beat regardless of your platform.
- • **Mood-Matching RGB Ambiance:** Dynamic per-key RGB backlighting with adjustable brightness to sync your keyboard vibe with your workspace energy.
- • **Tailored Typing Experience:** Hot-swappable low-profile optical brown switches with 70M keystroke lifespan—no soldering needed to customize your feel.
- • **Sleek Productivity Powerhouse:** Ultra-slim 2.2cm profile with reinforced aluminum frame for a premium, lightweight desk setup.
- • **Seamless Multi-Device Workflow:** Connect up to 3 devices via Bluetooth 5.1 and switch instantly—perfect for juggling Mac, Windows, and mobile.

## Overview

The Keychron K3 is a 2nd generation ultra-slim mechanical keyboard featuring a compact 75% layout with 84 keys. It offers hot-swappable low-profile optical brown switches with a 70 million keystroke lifespan, Bluetooth 5.1 connectivity for up to 3 devices, and wired USB-C mode. Designed for both Mac and Windows users, it includes extra keycaps and dedicated multimedia keys. The reinforced aluminum body ensures durability while maintaining a lightweight profile. Customizable RGB backlighting enhances both aesthetics and usability, making it ideal for professionals seeking a sleek, versatile keyboard for multitasking and long typing sessions.

## Description

Product Description Keychron K3 Highlights 75% layout ultra-slim wireless mechanical keyboard Bluetooth 5.1 and wired Reinforced aluminum body with plastic bottom frame Connects up to 3 devices For Mac & Windows Low-profile Keychron Optical switches preinstalled 18 Types of RGB backlight PACKAGE CONTENT 1 x Keychron K3 Hot-swappable Mechanical Keyboard 1 x Windows Keycaps 1 x USB-A to USB Type-C Cable 1 x Keycap Puller 1 x Switch Puller 1 x Dust Cover 1 x User Manual Ultra-Slim Hot-Swappable Bluetooth Mechanical Keyboard A 75% layout (84-key) hot-swappable RGB LED backlight wireless mechanical keyboard in a compact design that’s built for productivity and a tactile typing experience. Be ready to multitask without missing a beat by connecting the K3 with up to 3 devices wirelessly. With a unique Mac layout provides all necessary Mac function keys, while compatible with Windows. Low-profile Keychron Optical switches The low-profile optical switch is 40% slimmer than conventional switch with a stable MX style stem and ultra-low latency, the light actuated switch is crafted for typists or gamer with unrivaled responsiveness and up to 70 million keystroke lifespan. Hot-Swappable You can easily hot-swap every low-profile optical switch to any low-profile optical (red, blue, brown) switch (buy separately) to customize your typing experience on the K3 without soldering (*This keyboard is NOT compatible with any conventional MX style mechanical switch). Wireless and Wired Dual Modes Connects with up to 3 devices via Bluetooth and switch among them easily. With high reliable and broad compatibility Broadcom Bluetooth 5.1 chipset, the K3 is best to fit home, office and light gaming use while connecting with your smartphone, laptop and iPad. It also has wired mode with USB Type-C connection. For Mac and Windows With a unique Mac layout and Windows compatibility, the K3 is offering convenient accessibility to all the essential multimedia and function keys. Just plug and use, no driver is needed. Extra keycaps for both Windows and Mac operating systems are included. 18 Types of RGB Backlight The K3 comes with enchanting 18 types of RGB backlight with floating keycap design to sync with your mood. Ergonomic Support Engineered with two levels of adjustable feet, inclined bottom frame and curved keycaps to provide long-lasting ergonomic support for when you're typing on the K3. Ultra-slim design 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. SPECIFICATION

Review: I love it - 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.
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.

## 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 |
|---------------|-------|
| ASIN | B09K3LGC5M |
| Antenna Location | Everyday Use |
| Best Sellers Rank | 40,238 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 593 in Keyboards (Computers & Accessories) |
| Box Contents | [USB Cable, Extra Keycaps for Windows and Mac] |
| Brand | Keychron |
| Brand Name | Keychron |
| Button Quantity | 84 |
| Colour | Brown Swich |
| Compatible Devices | Smartphone |
| Compatible Operating System Family | MacOS, Windows |
| Compatible devices | Smartphone |
| Connectivity Technology | Bluetooth, USB |
| Connectivity technology | Bluetooth, USB |
| Country of Origin | China |
| Customer Reviews | 4.3 out of 5 stars 105 Reviews |
| Enclosure Material | Aluminium |
| Generation | 2nd Generation |
| Hand Orientation | Ambidextrous |
| Item Dimensions L x W x H | 30.6L x 11.6W x 2.2H centimetres |
| Keyboard Backlighting Color Support | RGB |
| Keyboard Description | Mechanical |
| Keyboard Layout | QWERTY |
| Keyboard description | Mechanical |
| Manufacturer | Keychron |
| Model Name | Keychron K3 |
| Model Number | BROWN-K3E3 |
| Number of Keys | 84 |
| Number of Sections | 4 |
| Power Source | Battery Powered |
| Product Features | Backlit |
| Recommended uses for product | Everyday Use |
| Special feature | Backlit |
| Style Name | Contemporary |
| Switch Type | Low profile optic |
| Theme | Gaming and Productivity |
| Unit Count | 1.0 count |

## 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:** Contemporary

## 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)
![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 2](https://m.media-amazon.com/images/I/61BjXG07xGL.jpg)
![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 3](https://m.media-amazon.com/images/I/411Disk9ZvL.jpg)
![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 4](https://m.media-amazon.com/images/I/61ulaAj-epL.jpg)
![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 5](https://m.media-amazon.com/images/I/71UKGNC5qrL.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

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ 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.

## 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 Poland*
*Store origin: PL*
*Last updated: 2026-05-30*