All items in stock will ship on the 6th January 2025
1 17

Keychron K3 Ultra-slim Wireless Mechanical Keyboard (Version 2)

SKU: KEYC-K3-B2
$170.91 $189.90
Version
Switch Type
Switch

Keychron K3 Ultra-slim Wireless Bluetooth Mechanical Keyboard version 2 has included keycaps for both Windows and macOS, and users can hot-swap every switch in seconds with the hot-swappable version. 

Please drop your email on "Notify Me When Available" if the product model is out of stock.

WHAT'S NEW ON K3 VERSION 2

Two level adjustable rubber feet

Reinforced body structure


More information about the upgrades, please check here.

The K3 has included keycaps for both Windows and Mac operating systems.

AN ULTRA-SLIM WIRELESS
MECHANICAL KEYBOARD

Keychron K3 ultra_slim Hot_swappable wireless mechanical keyboard Mac Windows iOS Android Keychron low profile Optical Gateron low profile mechanical switch red blue brown white black orange desktop

Incorporating the world’s first hot-swappable low profile Optical switches to customize per-key typing experience with ease, together with all signature Keychron features.

FEATURES

WIRELESS AND WIRED

Connects via Bluetooth and switch among them easily. Featuring Bluetooth 5.1 chipset, the K3 offers flawless connectivity whether you’re working at home or the office while connecting with your smartphone, laptop and iPad.

Keychron K3 ultra_slim Hot_swappable wireless mechanical keyboard Mac Windows iOS Android Keychron low profile Optical and Gateron low profile mechanical switch desktop setup

ULTRA-SLIM

The redesigned low profile switch is 40% slimmer than conventional switches. Together with the streamlined aluminum body makes the K3 one of the thinnest and lightweight wireless mechanical keyboards in the world.

Keychron K3 ultra-slim Hot-swappable wireless mechanical keyboard Mac Windows iOS Android Ultra-slim body

75% LAYOUT

Crafted for productivity, the K3’s 75% layout is a compact version of tenkeyless layout. It allows users access to all the essential multimedia and function keys, but with a smaller footprint.

Keychron K3 ultra_slim Hot_swappable wireless mechanical keyboard Mac Windows iOS Android Keychron low profile Optical and Gateron low profile mechanical switch desktop setup

ERGONOMIC ANGLE DESIGN

Two level adjustable rubber feet makes the new K3 more comfortable to type on.

SUITABLE FOR ALL DEVICES

Keychron K3 ultra_slim Hot_swappable wireless mechanical keyboard Mac Windows iOS Android Keychron low profile Optical and Gateron low profile mechanical switch alternative keycaps

Compatible for both macOS and Windows. Keychron is one of only a few in the market that comes with a Mac multimedia keys layout for Mac enthusiasts (Check high-res keycap layout and size here). For Linux users, we also have a dedicated user group to help with the experience.

HOT-SWAPPABLE OPTION

We also provide a hot-swappable version for your choice, which means you can customize your typing experience without soldering, pop them in and it's done.

We all have our unique typing preferences, that’s why we went the extra mile to make the K3 the world's first hot-swappable low profile Optical switch keyboard. We’ve implemented a MX-styled stem and stabilizers, and conducted numerous design iterations of the keyboard structure.

You can easily hot-swap every Optical switch in a few seconds to customize your typing experience on the K3 without soldering. *Hot-swappable feature is available for low profile Keychron Optical switch version only.

MECHANICAL OR OPTICAL?

We’ve overcome different technical challenges to redesign both the low profile Gateron Mechanical switch and low profile Keychron Optical switch in order to elevate the typing experience while enhancing its reliability on the ultra-slim keyboard.

Mechanical Switch

Keychron K3 ultra_slim Hot_swappable wireless mechanical keyboard Mac Windows iOS Android Keychron Gateron low profile mechanical red blue brownswitch

Durable low profile Gateron Mechanical switch with a 50 million keystroke lifespan to provide an unrivaled tactile responsiveness

Optical Switch

Keychron K3 ultra_slim Hot_swappable wireless mechanical keyboard Mac Windows iOS Android Keychron low profile Optical red blue brown white black orange switches

With the MX-styled stem housing and 0.2ms ultra-low latency, the low profile Keychron Optical switches are crafted for typists or gamers who want to type at lightning speed with a 70 million lifespan much greater than industry standards.

*Low profile Keychron Optical switch keyboard is not compatible with any conventional mx style mechanical switch.

ALTERNATIVE KEYCAPS

Keychron K3 ultra_slim Hot_swappable wireless mechanical keyboard Mac Windows iOS Android Keychron low profile Optical and Gateron low profile mechanical switch desktop setup

We’ve spent over a year developing and implementing a MX-styled stem on both the low profile switches for the K3 as well as stabilizers on the big keys like the space bar, left Shift, backspace and Enter key.

It will improve reliability, deliver better typing experiences, and may potentially pave the way for other keycap manufacturers to launch alternative keycaps.

Keychron K3 ultra_slim Hot_swappable wireless mechanical keyboard Mac Windows iOS Android Keychron low profile Optical and Gateron low profile mechanical switch desktop setup

18 TYPES OF RGB

Comes with various RGB backlight settings, you can adjust the keyboard brightness to sync with your mood. Various backlight patterns are also available on the K3 White Backlight version.

Floating keycap design

.

Static backlight option

Keychron K2 wireless mechanical keyboard for Mac and windows covered by Marques brownlee MKBHD. I had a very specific set of needs: wireless, arrow keys, no numpad, Mac compatible, backlit, found this
Keychron K2 wireless mechanical keyboard The Next Web TNW it stands out from the crowd with its design
Keychron K2 wireless mechanical keyboard for Mac and windows covered by Cult of Mac, Keychron K2 is the only mechanical keyboard you should get for iPad.
Keychron K2 wireless mechanical keyboard for Mac and windows covered by Uncrate
Keychron K2 wireless mechanical keyboard for Mac and windows covered by Marques brownlee MKBHD. I had a very specific set of needs: wireless, arrow keys, no numpad, Mac compatible, backlit, found this
Keychron K2 wireless mechanical keyboard for Mac and windows covered by Uncrate
Keychron K2 wireless mechanical keyboard for Mac and windows covered by Cult of Mac, Keychron K2 is the only mechanical keyboard you should get for iPad.
Keychron K2 wireless mechanical keyboard The Next Web TNW it stands out from the crowd with its design

TYPING TEST

Frequently bought together (Add-on)

Please select the matching variant for your product.

Crafted with canvas and EVA plastic, the Keychron keyboard carrying case is designed to protect your keyboard in style.
Crafted with canvas and EVA plastic, the Keychron keyboard carrying case is designed to protect your keyboard in style.
Crafted with canvas and EVA plastic, the Keychron keyboard carrying case is designed to protect your keyboard in style.
Crafted with canvas and EVA plastic, the Keychron keyboard carrying case is designed to protect your keyboard in style.
Crafted with canvas and EVA plastic, the Keychron keyboard carrying case is designed to protect your keyboard in style.
Keychron carrying case for k6 k6 pro plastic version keyboard
Keychron carrying case for k6 k6 pro aluminum version keyboard
Crafted with canvas and EVA plastic, the Keychron keyboard carrying case is designed to protect your keyboard in style.
Crafted with canvas and EVA plastic, the Keychron keyboard carrying case is designed to protect your keyboard in style.
Keychron K14 keyboard carrying case K14 aluminum version
Keychron K14 keyboard carrying case K14 plastic version
Keychron Keyboard Carrying Case
Keychron Keyboard Carrying Case
Keychron Keyboard Carrying Case
Carrying Case for Keychron Q2
Keychron Keyboard Carrying Case
Carrying Case for Keychron Q6 Custom Mechanical Keyboard
Keychron Q4 Keyboard Carrying Case
Keychron Q7 keyboard carrying case
Keychron Q9 keyboard carrying case
Keychron Q8 keyboard carrying case
Keychron Q10 keyboard carrying case
Keychron K10 Keyboard Carrying Case For Plastic Frame Version
Keychron K10 Keyboard Carrying Case For Aluminum Frame Version
Keychron Keyboard Carrying Case
Keychron Keyboard Carrying Case
Keychron Keyboard Carrying Case
Keychron Keyboard Carrying Case
Keychron Keyboard Carrying Case
Keychron Keyboard Carrying Case
Keychron Keyboard Carrying Case
Keychron Keyboard Carrying Case
Keychron Keyboard Carrying Case
Keychron Keyboard Carrying Case
Crafted with canvas and EVA plastic, the Keychron keyboard carrying case is designed to protect your keyboard in style.
Crafted with canvas and EVA plastic, the Keychron keyboard carrying case is designed to protect your keyboard in style.
Crafted with canvas and EVA plastic, the Keychron keyboard carrying case is designed to protect your keyboard in style.
Crafted with canvas and EVA plastic, the Keychron keyboard carrying case is designed to protect your keyboard in style.
Crafted with canvas and EVA plastic, the Keychron keyboard carrying case is designed to protect your keyboard in style.
Keychron carrying case for k6 k6 pro plastic version keyboard
Keychron carrying case for k6 k6 pro aluminum version keyboard
Crafted with canvas and EVA plastic, the Keychron keyboard carrying case is designed to protect your keyboard in style.
Crafted with canvas and EVA plastic, the Keychron keyboard carrying case is designed to protect your keyboard in style.
Keychron K14 keyboard carrying case K14 aluminum version
Keychron K14 keyboard carrying case K14 plastic version
Keychron Keyboard Carrying Case
Keychron Keyboard Carrying Case
Keychron Keyboard Carrying Case
Carrying Case for Keychron Q2
Keychron Keyboard Carrying Case
Carrying Case for Keychron Q6 Custom Mechanical Keyboard
Keychron Q4 Keyboard Carrying Case
Keychron Q7 keyboard carrying case
Keychron Q9 keyboard carrying case
Keychron Q8 keyboard carrying case
Keychron Q10 keyboard carrying case
Keychron K10 Keyboard Carrying Case For Plastic Frame Version
Keychron K10 Keyboard Carrying Case For Aluminum Frame Version
Keychron Keyboard Carrying Case
Keychron Keyboard Carrying Case
Keychron Keyboard Carrying Case
Keychron Keyboard Carrying Case
Keychron Keyboard Carrying Case
Keychron Keyboard Carrying Case
Keychron Keyboard Carrying Case
Keychron Keyboard Carrying Case
Keychron Keyboard Carrying Case
Keychron Keyboard Carrying Case

Keychron Keyboard Carrying Case

Keychron Q1 Q2 wooden palm rest
Keychron wooden palm rest for q3 keyboard
Keychron Q5 Keyboard Wooden Palm Rest
Keychron Q6 Wooden Palm Rest
Keychron K2 K6 K6 Pro Wooden Palm rest
keychron K3 K7 wooden palm rest
keychron k4 wooden palm rest
keychron K8 K8 Pro C1 wooden palm rest
keychron K12 Q4 wooden palm rest
keychron C2 K10 wooden palm rest
keychron k14 wooden palm rest
Keychron V1 keyboard wooden palm rest
Keychron Q7 Keyboard Palm Rest
Keychron Q8 Palm Rest
Keychron Q10 Wooden Palm Rest
Keychron Q11 wooden palm rest
Keychron Q12 Wooden Palm Rest
Keychron Wooden Palm Rest
Keychron Wooden Palm Rest
Keychron Wooden Palm Rest
Keychron Q1 Q2 wooden palm rest
Keychron wooden palm rest for q3 keyboard
Keychron Q5 Keyboard Wooden Palm Rest
Keychron Q6 Wooden Palm Rest
Keychron K2 K6 K6 Pro Wooden Palm rest
keychron K3 K7 wooden palm rest
keychron k4 wooden palm rest
keychron K8 K8 Pro C1 wooden palm rest
keychron K12 Q4 wooden palm rest
keychron C2 K10 wooden palm rest
keychron k14 wooden palm rest
Keychron V1 keyboard wooden palm rest
Keychron Q7 Keyboard Palm Rest
Keychron Q8 Palm Rest
Keychron Q10 Wooden Palm Rest
Keychron Q11 wooden palm rest
Keychron Q12 Wooden Palm Rest
Keychron Wooden Palm Rest
Keychron Wooden Palm Rest
Keychron Wooden Palm Rest

Keychron Wooden Palm Rest

The Low Profile Keychron Optical switches are engineered to build an ultimate ultra-slim mechanical keyboard with its smooth and tactile typing experience. It's fully compatible with our K3 only.
The Low Profile Keychron Optical switches are engineered to build an ultimate ultra-slim mechanical keyboard with its smooth and tactile typing experience. It's fully compatible with our K3 only.
The Low Profile Keychron Optical switches are engineered to build an ultimate ultra-slim mechanical keyboard with its smooth and tactile typing experience. It's fully compatible with our K3 only.
The Low Profile Keychron Optical switches are engineered to build an ultimate ultra-slim mechanical keyboard with its smooth and tactile typing experience. It's fully compatible with our K3 only.
The Low Profile Keychron Optical switches are engineered to build an ultimate ultra-slim mechanical keyboard with its smooth and tactile typing experience. It's fully compatible with our K3 only.
The Low Profile Keychron Optical switches are engineered to build an ultimate ultra-slim mechanical keyboard with its smooth and tactile typing experience. It's fully compatible with our K3 only.
low-profile Keychron optical banana switch
low-profile Keychron optical mint switch
Low Profile Keychron Optical Switch Set - 87 Pcs
The Low Profile Keychron Optical switches are engineered to build an ultimate ultra-slim mechanical keyboard with its smooth and tactile typing experience. It's fully compatible with our K3 only.
The Low Profile Keychron Optical switches are engineered to build an ultimate ultra-slim mechanical keyboard with its smooth and tactile typing experience. It's fully compatible with our K3 only.
The Low Profile Keychron Optical switches are engineered to build an ultimate ultra-slim mechanical keyboard with its smooth and tactile typing experience. It's fully compatible with our K3 only.
The Low Profile Keychron Optical switches are engineered to build an ultimate ultra-slim mechanical keyboard with its smooth and tactile typing experience. It's fully compatible with our K3 only.
The Low Profile Keychron Optical switches are engineered to build an ultimate ultra-slim mechanical keyboard with its smooth and tactile typing experience. It's fully compatible with our K3 only.
The Low Profile Keychron Optical switches are engineered to build an ultimate ultra-slim mechanical keyboard with its smooth and tactile typing experience. It's fully compatible with our K3 only.
low-profile Keychron optical banana switch
low-profile Keychron optical mint switch
Low Profile Keychron Optical Switch Set - 87 Pcs

Low Profile Keychron Optical Switch Set - 87 Pcs

Double-Shot PBT Low Profile Keycap Set Black Color
Double-Shot PBT Low Profile Keycap Set White Color
Double-Shot PBT Low Profile Keycap Set Black Color
Double-Shot PBT Low Profile Keycap Set White Color

Low Profile Double Shot PBT LSA Keycap Set

1

WITH KEYCHRON, YOU CAN

Credit@remmgg, @bellephat, @Riccardo Rossi, @thericebucket

SPECIFICATION

 
Number of Keys: 84 keys
Layout: ANSI
Version: Gateron / Optical / Hot-swappable
Switches: Low profile Gateron mechanical / Low profile Keychron Optical
Number of Multimedia Keys: 12 
Frame Material: ABS+Aluminum frame
Keycap Material: ABS
Polling Rate (Wired Mode): 1000Hz
Polling Rate (Wireless Mode): 90Hz

CONNECTIVITY AND POWER


Backlit Types: 18
Backlit: Adjustable 4-level backlit
Battery: 1550mAh Rechargeable li-polymer battery
BT Working Time (White Backlight Version): Up to 34 hours (Lowest brightness)
BT Working Time (RGB Version): Up to 34 hours (Lowest brightness)
BT Working Time (Backlit off): Up to 70 hours (Lab test result may vary by actual use)
Connection: Bluetooth and Type-C cable
Bluetooth version: 5.1
Bluetooth Device Name: Keychron K3
Compatible System: macOS/Windows

We recommend using the low brightness setting to achieve the best combination of illumination and long battery life. Turning the backlight off will greatly extend battery life.

PHYSICAL UNIT


Dimension: 306 x 116mm
Height incl. keycap (rear) 22mm
Height incl. keycap (front) 17mm
Weight: About 483g / 1.06lbs 
Operating Environment: -10 to 50℃

PACKAGE CONTENT

1 x Keyboard
1 x USB-A to USB Type-C Cable
1 x Keycap Puller
1 x Switch Puller (For Optical version only)
1 x Dust Cover
1 x User Manual
Learn how to alter the low profile switch on Keychron K3

Check the key combinations table of Keychron K3 here.

Compare the K3 with other Keychron keyboards

Learn More

Why Keychron makes the best Mac mechanical keyboard?

Learn More
All Keyboards
All Keyboards

Customer Reviews

Based on 1286 reviews
64%
(819)
17%
(221)
8%
(109)
5%
(62)
6%
(75)
H
Hrishi Modi
Good product - Great Customer Service

I got this as a gift from my son. The product is great and works very well with my IMac and Macbook pro. The space stabilizer came off and support team was very responsive and worked with me to ensure that it is fixed. They send me the parts needed and I could fix it.

It is perfect for me over time it has improved my typing, I enjoy typing and the lights and size are absolutely perfect for my use case. I'll be purchasing another Keychron keyboard for sure. .

Thanks for the super customer support.

X
Xelafed
One of the best

For low-profile mechanical keyboard is one of the best ! I'm waiting for the k3 pro to be back on stock because mine k3 start to feel a little bit clumsy, some keys are a little bit "mush", losing their bounciness. It's been 3 years now so it's time to upgrade :D

D
David Cuerrier
Love that keyboard since the beginning

Love that keyboard, I had some issues at the beginning with brown switch but it has been fixed. I have the keyboard for more then 2y now and still loving it, work like day1.

I would have like that QMK/VIA work with the keyboard though

Dave

p
pepe lucho
battery sucks everything else is great

love this keyboard however the battery will last at most about 12 hours if you keep the backlights on. After a year of using it, the batteries now only last 6 hours with the backlight on. So battery degrades pretty fast. Having said that, I will probably buy another one when the battery becomes completely useless.

D
David Fhu
Second Keychron

After owning K6, I know what I am looking for. I am a laptop user for the longest time, I should give Ultra-slim RGB Low Profile Optical (Hot-swappable) a try. Again it lives above my expectation. I managed to improve it with sound damping, lubed the switch, and replace some red switches with blue to make some difference in sound during typing. Just like K6, it has an ergonomic angle design. Made it comfortable to use. At the same time, I will need to get used to the new layout as Del button has changed place. Plus point to an additional print screen button. But I notice that K6 Type C cable is not compatible with K3. It is a letdown when you get to own more than one Keychron keyboard.

123

Shipping Policy

Learn More

Return Policy

Learn More

1 Year Warranty

Learn More

Help Centre

Learn More
Keychron

Keychron K3 Ultra-slim Wireless Mechanical Keyboard (Version 2)

$170.91 $189.90

Keychron K3 Ultra-slim Wireless Bluetooth Mechanical Keyboard version 2 has included keycaps for both Windows and macOS, and users can hot-swap every switch in seconds with the hot-swappable version. 

Please drop your email on "Notify Me When Available" if the product model is out of stock.

Version

  • RGB Backlight

Switch Type

  • Low Profile Gateron Mechanical
  • Low Profile Keychron Optical (Hot-swappable)

Switch

  • Blue
  • Brown
  • Red
View product
Back to top