What connectivity options does the Keychron B3 Pro UltraSlim US offer?

The Keychron B3 Pro UltraSlim US provides versatile connectivity options including 2.4 GHz wireless, Bluetooth 5.2, and a wired USB connection. This allows seamless switching between devices and ensures compatibility with a wide range of systems.

Is the keyboard layout suitable for compact desk setups?

Yes, the B3 Pro UltraSlim features a 75% layout, which is more compact than a full-sized keyboard but retains essential keys, including function keys and arrow keys. Its ultra-slim profile further enhances desk space efficiency without sacrificing functionality.

Can I switch easily between multiple devices with this keyboard?

Absolutely. Thanks to Bluetooth 5.2 and 2.4 GHz wireless support, you can pair the keyboard with multiple devices and effortlessly switch between them, making it ideal for users who work across different computers or tablets.

Does it support wired connection, and what are the benefits?

Yes, the keyboard supports a wired USB connection. Using a wired connection can reduce input latency, provide a stable connection without interference, and allows charging the keyboard simultaneously if it has a built-in battery.

How slim is the keyboard and does it affect typing comfort?

The B3 Pro UltraSlim is designed with an ultra-slim profile, making it sleek and modern. Despite its slim design, it maintains comfortable key travel and tactile feedback, ensuring a pleasant typing experience without the bulk of traditional mechanical keyboards.

Is the keyboard compatible with both Windows and macOS?

Yes, the keyboard is compatible with both Windows and macOS. It includes convenient key legends and shortcuts tailored for both operating systems, allowing users to switch seamlessly between platforms.

What kind of switches does the keyboard use, and are they hot-swappable?

The B3 Pro UltraSlim uses mechanical switches designed for a satisfying typing experience. However, it does not feature hot-swappable switches, so the switch type should be selected at purchase.

Does the keyboard support backlighting or RGB lighting?

The B3 Pro UltraSlim includes backlighting features that enhance visibility in low-light environments. While it may not have full RGB customization, the lighting options provide functional and stylish illumination.

How long does the battery last when using wireless mode?

When used wirelessly via Bluetooth or 2.4 GHz, the keyboard offers extended battery life suitable for daily use. Actual duration depends on usage patterns and backlighting settings, but it is optimized to minimize frequent charging.

Can I customize key assignments or macros on this keyboard?

The keyboard supports basic customization such as switching between Windows and macOS layouts, but advanced programmable macros may require third-party software or might be limited due to its ultra-slim design focus.

Keychron B3 Pro Starting at $33.99

Name: Keychron B3 Pro
Brand: Keychron

Vendor	Location	Coupon Code	Price (USD)	Link*
Keychron B3 Pro 75% Ultra-Slim Wireless ...
	Based in US	-	$35	Visit Shop
Keychron B3 Pro Ultra-Slim Wireless Keyboard
	Shipping to US	-	$34	Visit Shop
Keychron B3 Pro Ultra-Slim Wireless Keyboard(US ANSI Layout)
	No shipping to US		$60	Visit Shop

Vendor

Location

Coupon Code

In Stock

Price (USD)

Link*

Keychron B3 Pro 75% Ultra-Slim Wireless ...

Based in US

$35

Visit Shop

Keychron B3 Pro Ultra-Slim Wireless Keyboard

Shipping to US

$34

Visit Shop

Keychron B3 Pro Ultra-Slim Wireless Keyboard(US ANSI Layout)

No shipping to US

$60

Visit Shop

Compare Keychron B3 Pro vs Keychron B1 Pro vs Keychron B33 Specification

Compare similar keyboards side by side, or use the comparison table to compare all keyboards!

Model	Keychron B3 Pro	Keychron B1 Pro	Keychron B33
			66
Rating	0.0 stars (0 reviews)	4.2 stars (15 reviews)	4.7 stars (3 reviews)
Purchase Options
Main differences	Equipped with a 1200 mAh battery Weighs about 410 g Sized at 3 x 100 x 380 mm Made with a ABS case	Released in 2024 Built with the ANSI, ISO, JIS layout standard Equipped with a 800 mAh battery Weighs about 425 g Sized at 5 x 296 x 130 mm Made with a Plastic, ABS case	Available in a 80% layout Features N-key rollover Includes screw-in stabilizers Has built-in sound dampening Uses a Gasket Mount mounting style Equipped with a 4000 mAh battery Weighs about 1977 g Sized at 33 x 370 x 146 mm Made with a Metal, ABS case Features PBT, ABS keycaps
Score	Scores Performance: 48.5 Build Quality: 42.4 Productivity: 66.9 Customizability: 46 Portability: 78.2	Scores Performance: 48.1 Build Quality: 41.6 Productivity: 66.1 Customizability: 45 Portability: 77.9	Scores Performance: 56.4 Build Quality: 65.7 Productivity: 85.3 Customizability: 51.9 Portability: 73.6
Name	Name Keychron B3 Pro	Name Keychron B1 Pro	Name Keychron B33
Release year	Release year 2025	Release year 2024	Release year 2025
Switch Options	Switch Options Linear, Tactile, Clicky	Switch Options Linear, Tactile, Clicky	Switch Options Linear, Tactile, Clicky
Profile	Profile Low Profile	Profile Low Profile	Profile Low Profile
Hot Swappable	Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 75%	Layout Size 75%	Layout Size 80%
Layout Standard	Layout Standard ANSI	Layout Standard ANSI, ISO, JIS	Layout Standard ANSI
Layout Ergonomics	Layout Ergonomics Normal	Layout Ergonomics Normal	Layout Ergonomics Normal
Knob Support	Knob Support	Knob Support	Knob Support
Display Support	Display Support	Display Support	Display Support
Mac/Win Support	Mac/Win Support	Mac/Win Support	Mac/Win Support
Multi-Media Keys	Multi-Media Keys	Multi-Media Keys	Multi-Media Keys
USB-C	USB-C	USB-C	USB-C
USB passthrough	USB passthrough	USB passthrough	USB passthrough
Connection	Connection Bluetooth, 2.4 GHz, Wired, Wireless	Connection Bluetooth, 2.4 GHz, Wired, Wireless	Connection Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate	Polling Rate 1000 Hz	Polling Rate 1000 Hz	Polling Rate 1000 Hz
Battery capacity	Battery capacity 1200 mAh	Battery capacity 800 mAh	Battery capacity 4000 mAh
Hall Effect Support	Hall Effect Support	Hall Effect Support	Hall Effect Support
QMK Support	QMK Support	QMK Support	QMK Support
VIA Support	VIA Support	VIA Support	VIA Support
VIAL Support	VIAL Support	VIAL Support	VIAL Support
N-Key Rollover	N-Key Rollover	N-Key Rollover	N-Key Rollover
Rapid Trigger	Rapid Trigger	Rapid Trigger	Rapid Trigger
Mount Style	Mount Style -	Mount Style -	Mount Style Gasket Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight	Backlight	Backlight
Case Colors	Case Colors	Case Colors	Case Colors
Case Material	Case Material ABS	Case Material Plastic, ABS	Case Material Metal, ABS
Keycaps Material	Keycaps Material ABS	Keycaps Material ABS	Keycaps Material PBT, ABS
Dimensions	Dimensions 3 x 100 x 380 mm	Dimensions 5 x 296 x 130 mm	Dimensions 33 x 370 x 146 mm
Weight	Weight 410g	Weight 425g	Weight 1977g

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Product Description

The Keychron B3 Pro UltraSlim US is a compact 75% keyboard designed for users who want a slim profile with versatile connectivity. It suits office workers or hobbyists needing a wireless option with multiple connection modes. Its layout balances key availability and desk space, making it practical for daily typing and moderate customization.

Key Features

Supports 2.4 GHz wireless, Bluetooth 5.2, and wired USB-C connections, offering flexibility for different devices and environments.
Ultra-slim design reduces desk clutter and improves portability without sacrificing essential keys found in a 75% layout.

Connectivity

The keyboard can connect via three methods: 2.4 GHz wireless for stable, low-latency use; Bluetooth 5.2 for easy pairing with multiple devices; and wired USB-C for zero latency and charging. This variety allows switching between workstations or devices without needing separate keyboards.

Trade-offs

The ultra-slim form factor may limit key travel and tactile feedback compared to thicker mechanical keyboards, which could affect typing feel for some users.
Details on switch types, build materials, and typing acoustics are unknown, making it harder to assess durability and sound profile.
No information on firmware customization or key remapping is available, which may restrict advanced user customization.

Use Cases

This keyboard fits users who prioritize a compact, wireless setup with flexible connectivity options. It is less ideal for those seeking deep customization, robust build details, or specific typing feedback, as these aspects are not clearly documented.

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