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Keychron B40 Wireless Keyboard

SKU: B40-K9
Regular price $49.99

Color

Frequently Bought Together

Keychron B40: 75% Alice layout, quiet scissor keys, tri-mode connectivity, and 520-hour battery in 2.4 GHz mode.

Regular price $49.99
Keychron B40 Wireless Keyboard

Customise

Keychron B40

The B40 is a professional ergonomic wireless keyboard designed for long-time office users. Its 75% Alice layout keeps your hands in a natural typing position, while a scissor-key mechanism delivers quiet, comfortable keystrokes. Customizable macro keys and tri-mode connectivity round out the setup, so your workflow stays smooth and your desk stays clutter-free.

Essence

Ergonomic Design
Ergonomic Design
M1-M5 Macro Keys
M1-M5 Macro Keys
Customized Knob
Customized Knob
Scissor-Key Low-Noise
Scissor-Key Low-Noise
Tri-Mode Connectivity
Tri-Mode Connectivity
Mac & Windows
Mac & Windows
520 Hours Battery
520 Hours Battery
Keychron AI Launcher
Keychron AI Launcher

DESIGN

Made for Modern Work

Deep Black brings a clean, understated look to any workspace, from the office to your home desk.

Keychron B40 Wireless KeyboardKeychron B40 Wireless Keyboard

CONNECTIVITY

Tri-Mode Connectivity

Connect over 2.4 GHz, Bluetooth 5.2, or USB-C. Bluetooth can hold up to 3 devices at once, so you just pick the one you want. The keyboard comes with a 2.4 GHz receiver that tucks into a slot on the body, so you don't have to worry about losing it on the move.

Up to 520 Hours

Charge Less, Type More

The 800 mAh battery lasts up to 520 hours on a single charge in 2.4 GHz mode, so you can work for weeks without recharging. Charge via USB-C when you need to and get back to work.

AI LAUNCHER

Customize with AI

Keychron Launcher runs in your browser, no install needed. Remap keys, create macros, set up shortcuts or key combinations, adjust the polling rate, and configure M1-M5 all in one place. The AI assistant is right there too: describe what you want and it points you to the right setting.

Macro
Keymap
Quick Start
Key Test
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Anytime, Anywhere Access

Keychron Launcher is a web page configurator that you can use in the office, school, lab, or government department—anywhere with internet access. Configure your keyboard online anytime without the need to download or install files. No hassle, no trouble.

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Compatible with All Platforms

As a web-based tool, Keychron Launcher supports all operating systems. Personalize and program your keyboard on Windows, macOS, Linux, and more. Enjoy unprecedented flexibility with compatibility across Chrome, Edge, and Opera browsers.

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Always Up to Date

Keychron Launcher is continuously updated, ensuring you always have access to the latest version. There's no need to download updates or wait for installations.

TYPING EXPERIENCE

Quiet, Comfortable Typing

The B40's scissor keys are 59% taller than standard scissor keycaps, so every press feels deeper and fuller while staying stable and quiet. The keys are fixed and not hot-swappable. The Alice layout keeps your hands in a natural angle, reducing strain during long typing sessions.

Productivity

M1-M5 Macro Keys

Assign shortcuts, text snippets, app launches, and more to five dedicated macro keys for a smoother workflow.

Designed for all-day comfort

Alice Ergonomic Layout

The Alice layout cuts down reaching and twisting, so your fingers, wrists, and shoulders stay closer to their natural position. It is comfort designed around how you actually work. Dropping the number pad also gives your mouse more room, which suits coding, design, and everyday use.

Keychron B40 Wireless Keyboard

Control

Control at a Turn

Adjust volume, brightness, zoom, and more with the customizable knob. Set it up in Keychron Launcher to fit the way you work.

Mac & Windows

Work Your Way

Native Mac layout with full Windows compatibility. Flip the physical switch to move between systems seamlessly, without going into settings.

function

Convenient Shortcut Keys

The B40 lets you switch between multimedia controls (volume, play/pause, brightness) and standard F1-F12 function keys. Hold Fn + X + L for three seconds to toggle between the two modes.

Find Your Angle

Ergonomic Support

Two adjustable angles (6.5° / 9°) let you find a position that supports your wrists through long sessions. The slightly taller keycaps also reduce wobble and help keep fatigue down during extended typing.

Guide

What's in the box?

Keyboard: 1×Alice Layout Keyboard
Cable: 1×Type-C Cable
Receiver: 1×2.4 GHz Receiver

Weight
  • 595 g
Body Material
  • ABS
Keycap
ABS
Backlight
Non-backlight
Battery
800 mAh rechargeable lithium battery
Compatible System
macOS, iOS, Windows, Android, Linux
Operating Environment
-10 to 50°C
Connectivity
2.4 GHz / Bluetooth / Type-C wired
Polling Rate
1000 Hz (Wired and 2.4 GHz)
125 Hz (Bluetooth)
Wireless Working Time
520 Hours (in 2.4 GHz Mode)
Bluetooth Device Name
Keychron B40
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