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Keychron
keychron.com › pages › k3-user-manual
K3 User Manual – Keychron
K3 Quick Start Guide K3 Keyboard User Manual How to disassemble K3? How to alter the low profile optical switch on K3? K3 Keyboard Keycap Layout HD Picture K3 Keyboard Keycap 3D Files K3 Keyboard Plate File The Key Combinations Table Of Keychron K3
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Tom's Hardware
tomshardware.com › peripherals › keyboards
Keychron K3 Review: Slim, Customizable Style | Tom's Hardware
Keychron K3 Review: Slim, Customizable Style
Keychron's K3 Bluetooth/wired mechanical keyboard goes low-profile and offers a plethora of switch options. There's a lot to like, from looks to feel. Just keep a USB-C cable handy for charging.
Rating: 4 ​
Discussions

Breakdown of Keychron K3 switches
K4 blue mechanical, best keyboard I ever owned. Loud sure but I know when the buttons are pressed and exactly how much pressure to exert. WFH was significantly better with this available. More on reddit.com
🌐 r/MechanicalKeyboards
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27
January 16, 2022
Yellow vs brown switches for K3?
Banana vs brown* I've never tried either and considering getting one of them. Which one would you prefer? More on reddit.com
🌐 r/Keychron
14
24
June 21, 2021
Low profile switches and keycaps K3 v2

There are all the information on their website. The switches compatibility is limiteted at only their optical switches.They don't have any pin because the laser is soldered on the pcb.

About keycaps, they use standard mx stem, but they have used a not standard implementation for stabilizers. So, basically, you can't swap them with normal keycaps and they don't offer any other version other than their basic abs kit.

More on reddit.com
🌐 r/Keychron
3
5
May 11, 2018
K3 Switch and Keycap Support
I just got a K3 with optical hotswap switches. You can only swap with other KEYCHRON low profile optical switches so buy the sets you want along with your purchase. I got blue switches installed and a set of red switches as well. EDIT: I was wrong. Normal height keycaps for keys with stabs, will not fit. Look below in this thread for photos. More on reddit.com
🌐 r/Keychron
14
4
January 10, 2021
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Keychron
keychron.com › home › keychron k3 ultra-slim wireless mechanical keyboard (version 2)
Keychron K3 Ultra-slim Wireless Mechanical Keyboard (Version 2)
Wireless Bluetooth 5.1 or Wired type-C mode. Users can hot swap every switch in seconds with the Optical switch hot-swappable version. Works with Mac, Windows, iOS, Android, Linux. Low profile Optical or Gateron Switches.
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Keychron
keychron.com › blogs › news › k3-key-combinations
K3 Key Combinations – Keychron
November 7, 2025 - For the Keychron K3, we’ve included all the normal and useful function keys that can be accessed via the key combinations. Here is the table for all the key combinations and functions it can access. Keychron K3 Key Combinations fn+keys Keys Function fn + - RGB Speed Decrease fn + = RGB Speed Increase fn + Light Effect
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Keychron
keychron.com › home › keychron k3 max qmk/via wireless custom mechanical keyboard
Keychron K3 Max QMK/VIA Wireless Custom Mechanical Keyboard
SPECIFICATION Number of Keys: 84 (75%) Switches: Gateron low-profile mechanical / Keychron Low Profile Mechanical Switch Face: North-facing Number of Multimedia Keys: 12 Frame Material: ABS+Aluminum frame Keycap Material: Low-profile double-shot PBT Layout: ANSI Polling Rate (2.4Ghz and Wired Mode): 1000Hz Polling Rate (BT Mode): 90Hz N-Key Rollover (NKRO): Yes for both wireless and wired modes *The K3 Max is currently compatible with Gateron/Keychron low-profile mechanical switches only, as QMK does NOT support low-profile optical switches.
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Keychron
keychron.com › home › switches
Keychron Switches Collection
Keychron K3 Max · 75% Compact Slim · Keychron K11 Max · 65% Alice Slim · Keychron K13 Max · 80% Compact Slim · Keychron K17 Max · 96% Slim · Keychron K1 Max · 80% Compact Slim · Keychron K5 Max · 100% Full Size Slim · Keychron K7 Max · 65% Slim · Keychron K15 Max ·
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Candykeys
candykeys.com › product › keychron-k3-v2-iso-de › optical-red-switch
Keychron K3 V2 (ISO-DE) [K-CLEARANCE] Optical Red Switch | CandyKeys
Keychron K3 V2 (ISO-DE)
- Lowprofile 75% Keyboard - K3 Keychron - ISO-DE Layout - RGB LEDs - HOTSWAP Variant - Optical Keychron Switches - Low-Profile Switches - OS X Friendly!
Price   €45.00
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Reddit
reddit.com › r/mechanicalkeyboards › breakdown of keychron k3 switches
r/MechanicalKeyboards on Reddit: Breakdown of Keychron K3 switches
January 16, 2022 -

Hey all - when I was purchasing my keyboard this was the review I wanted and couldn’t find; so I’ve decided I will be the “one” that “me” needed.

I purchased all variations of the Keychron K3 as I wanted a low profile, Bluetooth, mechanical keyboard. Keychron has a stellar reputation for those who want mech keyboards but aren’t just ready to transition down the rabbit hole of custom boards…yet. These switches follow the regular “colors” of switch groups but they’re optical which prove to be quite a difference…

Overall - all of these feel a little…mushy. I don’t know whether that’s due to them being optical, low profile, or both. I’ll add to this review when the next batch of keyboards (the non optical switches) comes in next week. I love the slim profile so if it’s due to them being low profile I may have to give up my hopes of a good wireless low profile mech keyboard and just go back to my custom one.

Sound test - https://www.reddit.com/r/MechanicalKeyboards/comments/s4rllz/keychron_low_profile_optical_mechanical_switch/?utm_source=share&utm_medium=ios_app&utm_name=iossmf

Optical: white, orange, bananas, and mint to come soon

Red - linear - I dislike low profile linear. I ordered this one just to see what it would feel like, and it’s pretty much what I expected. The sound is pretty really nice but the feel is as if you were pressing down on a spring. This is mostly due to it being low profile + linear and not having much travel space. I have durock linears in my custom board; I prefer those over these. I would not trust YouTube videos of sound. They sound vastly different in person than they do recorded.

Blue - clicky - these felt really good. The click is a bit high pitched for me and of the three this is the only one that had a loud pinging sound. I think you could get rid of it with foam or a tape mod but the low profile board could make that quite difficult.

Brown - tactile - these were nice but the tactile bump is barely there. I read some other reviews saying the same thing - but wanted to feel for myself. I usually don’t hate browns that much but these are just a little too mushy for my taste.

Gateron:

Red - didn’t try this one because it wasn’t in stock when I checked. I would imagine it’s better than optical but is still low profile linear nonetheless.

Blue - these are LOUD. They make the optical ones sound quiet af. The feel is good and I could like them - but def not my first choice for work as they’re very loud and deep for blue switches. They’re thocky but also…not? In sound - these sound the most like their non-linear counterparts.

Brown - these are my favorite. I like these more than optical 100% and will be using this one as my main driver. I also noticed these keycaps are different. They’re smoother plastic not so much the soft-touch that the others have - and it seems to hold up against shine better. Not great but better than the other two.

Find elsewhere
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Keychron
keychron.com › home › all switches
All Switches – Keychron
Magnetic Switch · QMK Launcher · Shine-through · Slim Mechanical · South-Facing RGB · Southpaw · Ultra-slim · Wireless · Wooden · Keychron K3 Max All-Wood · 75% Compact Slim · Lemokey P3 HE · 80% Compact · Keychron V1 8K · 75% Compact · Keychron Q6 Ultra 8K ·
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Keychron
keychron.com › pages › firmware-for-k3-us-keyboard
Firmware for K3 US Keyboard – Keychron
Download the correct firmware for your layout (K3 White Backlight/ K3 RGB Backlight/Gateron switch/ Keychron optical switch) otherwise, it can break your keyboard.
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Keychron
keychron.com › home › keychron k3 qmk wireless mechanical keyboard (version 3)
Keychron K3 QMK Wireless Mechanical Keyboard (Version 3)
You can master keys or macro commands on its 75% compact layout through the Keychron Launcher web app. Compatible with both Windows and macOS, it also allows for easy hot-swapping with · Keychron Milk POM Switches (for the RGB Backlight ...
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Amazon
amazon.com › Keychron-Profile-Wireless-Mechanical-Keyboard › dp › B08LSJ4RHH
Amazon.com: Keychron K3 Version 2, 84 Keys Ultra-Slim Wireless Bluetooth/USB Wired Mechanical Keyboard with White LED Backlit, Low-Profile Keychron Mechanical Brown Switch Compatible with Mac Windows : Electronics
Amazon.com: Keychron K3 Version 2, 84 Keys Ultra-Slim Wireless Bluetooth/USB Wired Mechanical Keyboard with White LED Backlit, Low-Profile Keychron Mechanical Brown Switch Compatible with Mac Windows : Electronics
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Keychron
keychron.com › home › normal profile keyboards
Normal Profile Keyboards – Keychron
Magnetic Switch · QMK Launcher · Shine-through · Slim Mechanical · South-Facing RGB · Southpaw · Ultra-slim · Wireless · Wooden · Keychron K3 Max All-Wood · 75% Compact Slim · Lemokey P3 HE · 80% Compact · Keychron V1 8K · 75% Compact · Keychron Q6 Ultra 8K ·
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Keychron
keychron.com › home › low profile keychron optical switch set - 87 pcs
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.
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Keychron
keychron.com › home › low profile switches
Low Profile Switches – Keychron
Magnetic Switch · QMK Launcher · Shine-through · Slim Mechanical · South-Facing RGB · Southpaw · Ultra-slim · Wireless · Wooden · Keychron K3 Max All-Wood · 75% Compact Slim · Lemokey P3 HE · 80% Compact · Keychron V1 8K · 75% Compact · Keychron Q6 Ultra 8K ·
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The Newsprint
thenewsprint.co › 2021 › 01 › 26 › my-first-impressions-of-the-keychron-k3-keyboard-with-orange-optical-switches
My First Impressions of the Keychron K3 Keyboard with Orange Optical Switches - The Newsprint
March 25, 2021 - I had tried tactile Brown switches, linear Red switches (though apparently the low-profile Reds are significantly different than full-sized Red switches), and it was time to try something new. So I took a gamble and ordered the 75% Keychron K3, the world’s first hot-swappable, low-profile optical switches ever in a wireless keyboard.
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Keychron
keychron.com › pages › how-to-alter-the-low-profile-optical-switch-on-keychron-k3
How to alter the low profile optical switch on Keychron K3
Note: Make sure to pull the switches in right direction. From up and down use the switch puller to pinch the optical switch and then twist a little bit. That way you'll be able to remove the switch.
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Keychron
keychron.com
Keychron | Custom Mechanical Keyboards for Mac, Windows and Phones
Magnetic Switch · QMK Launcher · Shine-through · Slim Mechanical · South-Facing RGB · Southpaw · Ultra-slim · Wireless · Wooden · Keychron K3 Max All-Wood · 75% Compact Slim · Lemokey P3 HE · 80% Compact · Keychron V1 8K · 75% Compact · Keychron Q6 Ultra 8K ·
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YouTube
youtube.com › martin aaberge
Keychron K3/K7 - Choose The Right Low-Profile Optical SWITHCES. Sound Tests and Personal Thoughts - YouTube
You asked about the new early bump tactile switches, how they feel, and sound vs. the other switches. In this video, I'll let you know what I think now that ...
Published   February 2, 2022
Views   197K