Keychron

Keychron B3 Pro Ultra-Slim Wireless Keyboard

75%Tray MountUSB-C + Bluetooth + 2.4GHzLow Profile
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Keyboard Overview

Keychron B3 Pro is a 75% ultra-slim wireless keyboard. It supports 2.4 GHz, Bluetooth 5.2, and a wired connection.

Official Site

Last Updated: September 5, 2026

Specifications

Physical Specifications

Layout
75%
Key Count
82
Width
299.8mm
Depth
122.2mm
Height
18mm
Weight
0.41kg

Mount Type

Mount Type
Tray Mount
Case Material
ABS
Plate Material
ABS
Hot-swappable
No
Connectivity
USB-C + Bluetooth + 2.4GHz
RGB Support
No
Keybinding
Custom

Keycap Profile

Keycap Material
ABS
Keycap Included
Yes

Default Switch

Switch Profile
Low Profile
Connector Type
Scissor Switch
Switch Profile
Scissor Switch

Other

Battery Capacity
800mAh
Battery Life
120 hours

Vendor Information

Vendor Information

keychron

34.99 USD
Note: Price information may not be accurate. Please verify the current price on the vendor's website.
in stock
Last Updated: 9/17/2026

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