Why usb c to usb a? the cable provided has usb c connector at the keyboard end and usb a at the computer end. why not usb c at both ends?

Probably because the rest of the computer industry hasn’t moved completely to usb c. USB A is a highly robust connector going on 24 or so years. The USB C connector though fast has been known to lose how well it holds into the receptacle after awhile. USB A is also still the most common connector thus making it the most compatible.

How can i program the backlights to display my own rgb sequence?

Unfortunately with the Keychron K4 you are unable to program your own colors or pattern. You can select from some preset patterns or a specific color using a key on the keyboard.

"usb accessories disabled" when connecting through an external display. any idea as to how to fix this ?

What's giving you that message? Windows or the display itself? Doesn't sound like windows... If so, Google the message with the model of your display. Probably many other people have had this problem.

Are the switches hot swappable?

No, on this keyboard you can’t hot swap. It’s a good keyboard but it’s not what your looking for if you want to change out keys.

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K4

Product ID: 268054979

Details

Brand
Keychron
Color
Gateron Brown
Compatible Devices
Laptop
Connectivity Technology
wired wireless
Keyboard Description
Mechanical
Keyboard backlighting color support
RGB

🌈RGB backlit with 15+ lighting modes

🔄Multi-device Bluetooth 5.1, 3-device pairing

🔋4000mAh battery, up to 7 days use

26853F

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Sold byAmazon French PolynesiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⌨️ Elevate your desk game with the Keychron K4 — where power meets precision.

COMPACT 96 LAYOUT - Full 100-key with numpad in a sleek, space-saving design perfect for multitasking pros.
POWERHOUSE BATTERY LIFE - 4000mAh battery delivers up to 72 hours of typing or a full workweek on a single charge.
TACTILE GATERON BROWN SWITCHES - 50 million keystroke lifespan with satisfying tactile feedback for peak productivity and gaming.
SEAMLESS MULTI DEVICE SWITCHING - Pair up to 3 devices via Bluetooth and switch instantly—work smarter, not harder.
CUSTOM MAC WINDOWS COMPATIBILITY - Includes extra keycaps and Mac-specific layout—flawless cross-platform performance.

The Keychron K4 Version 2 is a premium compact mechanical keyboard featuring a 96% layout with 100 keys, including a numpad, designed for professionals and gamers alike. It supports wireless Bluetooth connectivity with up to 3 devices and wired USB-C mode, powered by a robust 4000mAh battery offering up to 7 days of use. Equipped with durable Gateron Brown switches and customizable RGB backlighting, it ensures a tactile, responsive typing experience. Its aluminum frame and Mac/Windows compatibility make it a versatile, stylish addition to any workspace.

Specifications

ASIN	B08LYMDYV9
Additional Features	Bluetooth, Lighting, Wireless
Antenna Location	Gaming, Office
Best Sellers Rank	#6,233 in Video Games ( See Top 100 in Video Games ) #227 in Mac Accessories #518 in PC Gaming Keyboards
Brand	Keychron
Built-In Media	Keycap Puller, USB Cable
Button Quantity	99
Color	Gateron Brown Switch
Compatible Devices	Laptop, Smartphone
Compatible Operating System Family	MacOS, Windows
Connectivity Technology	wired, wireless
Customer Reviews	4.5 4.5 out of 5 stars (708)
Enclosure Material	Aluminum
Generation	2
Hand Orientation	Ambidextrous
Item Dimensions L x W x H	14.8"L x 5.08"W x 1.5"H
Item Weight	0.94 kg
Keyboard Backlighting Color Support	RGB
Keyboard Description	Mechanical
Keyboard Layout	QWERTY
Keyboard Plate Material	Aluminum
Manufacturer	Keychron
Mfr Part Number	K4C3
Model Name	K4
Model Number	K4C3
Number of Batteries Required	1
Number of Items	1
Number of Keys	99
Number of Packs	1
Number of Sections	2
Series Number	4
Style Name	Contemporary
Switch Type	Gateron Brown Switch
Theme	keyboards
Unit Count	1 Count
Warranty Description	1
Water Resistance Level	Not Water Resistant

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