What is unique about the NIUNIU @40 keyboard?

The NIUNIU @40 keyboard is a compact 40% low-profile keyboard that focuses on portability and a sleek design. It offers multiple connection modes and is hotswappable, allowing users to easily customize their typing experience.

Can I use the @40 keyboard wirelessly?

Yes, the @40 keyboard offers dual-mode (Bluetooth and wired) and tri-mode (2.4GHz, Bluetooth, and wired) connection options, providing flexibility for both wireless and wired use.

What layouts does the @40 keyboard support?

The @40 keyboard supports both staggered and ortholinear layouts, catering to different typing preferences and ergonomic needs.

Is the NIUNIU @40 hotswappable?

Yes, the @40 keyboard features a hotswappable PCB, allowing you to easily change switches without soldering, giving you the freedom to customize your typing feel.

What materials are used in the construction of the @40 keyboard?

The @40 keyboard features an anodized aluminum housing, providing a durable and premium feel. It also includes an FR4 plate and sound dampening foam sheets for enhanced typing sound and feel.

Does the @40 come with any additional accessories?

Yes, the @40 includes silicone pads, lithium batteries for dual or tri mode models, and a USB dongle for tri mode connectivity. It also comes with Kailh low profile stabilizers for a stable typing experience.

How does the low-profile design of the @40 affect typing?

The low-profile design of the @40 keyboard provides a more ergonomic typing experience by reducing the height of the keys, which can help minimize finger fatigue during extended use.

What colors are available for the @40 keyboard?

The @40 keyboard is available in several anodized colors, including Silver, Black, Blue, Yellow, and Olive, allowing you to choose a style that matches your personal taste.

Does the @40 support customization software?

Yes, the @40 keyboard supports VIAL, a powerful open-source software that allows you to easily customize key mappings and macros to enhance your productivity.

NIUNIU @40 Starting at $88.99

Name: NIUNIU @40
Brand: NIUNIU
SKU: pre-order-40-40-low-profile-keyboard-kit-by-niuniu
Rating: 4.5 (4 reviews)

Vendor	Location	Coupon Code	In Stock	Price (USD)	Link*
NIUNIU @40
	Global	-	Check vendor	Check vendor	Visit shop
[Pre-Order] @40 40% Low Profile Keyboard Kit by Niuniu
	Shipping to US			$89 Out of stock	Visit Shop

Vendor

Location

Coupon Code

In Stock

Price (USD)

Link*

NIUNIU @40

Global

Check vendor

Visit shop

[Pre-Order] @40 40% Low Profile Keyboard Kit by Niuniu

Shipping to US

$89

Out of stock

Visit Shop

Compare NIUNIU @40 vs KBDFans Agar Micro vs Nuphy Air75 V2 Specification

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

Model	NIUNIU @40	KBDFans Agar Micro	Nuphy Air75 V2
	78	70	92
Rating	4.5 stars (4 reviews)	0.0 stars (0 reviews)	0.0 stars (0 reviews)
Purchase Options
Main differences	Released in 2025 Offers Ortholinear ergonomics Supports VIAL configuration Includes screw-in stabilizers Made with a Aluminum case	Released in 2026 Offers Alice ergonomics Uses a Gasket Mount mounting style Supports Wired, Wired only connectivity Made with a Polycarbonate, Aluminum case	Released in 2023 Has Linear, Tactile, Low-profile Mechanical switch options Available in a 75% layout Offers Normal ergonomics Compatible with both Mac and Windows Provides dedicated media keys Supports QMK firmware Features N-key rollover Runs at a 1000 Hz polling rate Equipped with a 4000 mAh battery Weighs about 598 g Sized at 14 x 316 x 133 mm Made with a Aluminum, ABS case Features PBT keycaps Offers Yes, Rgb, South-face, Rgb South-face RGB lighting
Score	Scores Performance: 46.6 Build Quality: 80.6 Productivity: 80.7 Customizability: 75.6 Portability: 82.9	Scores Performance: 46 Build Quality: 78.4 Productivity: 56.4 Customizability: 66.9 Portability: 62.5	Scores Performance: 81.1 Build Quality: 80 Productivity: 88.8 Customizability: 95.1 Portability: 79.1
Name	Name NIUNIU @40	Name KBDFans Agar Micro	Name Nuphy Air75 V2
Release year	Release year 2025	Release year 2026	Release year 2023
Switch Options	Switch Options -	Switch Options -	Switch Options Linear, Tactile, Low-profile Mechanical
Profile	Profile Low Profile	Profile Normal Profile	Profile Low Profile
Hot Swappable	Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 40%	Layout Size 40%	Layout Size 75%
Layout Standard	Layout Standard ANSI	Layout Standard ANSI	Layout Standard ANSI
Layout Ergonomics	Layout Ergonomics Ortholinear	Layout Ergonomics Alice	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 Wired, Wired only	Connection Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate	Polling Rate -	Polling Rate -	Polling Rate 1000 Hz
Battery capacity	Battery capacity -	Battery capacity -	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 Gasket Mount	Mount Style -
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight	Backlight	Backlight Rgb, South-face
Case Colors	Case Colors	Case Colors	Case Colors
Case Material	Case Material Aluminum	Case Material Polycarbonate, Aluminum	Case Material Aluminum, ABS
Keycaps Material	Keycaps Material -	Keycaps Material -	Keycaps Material PBT
Dimensions	Dimensions -	Dimensions -	Dimensions 14 x 316 x 133 mm
Weight	Weight -	Weight -	Weight 598g

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Product Description

The NIUNIU @40 is a 40% low profile keyboard kit designed for users who want a compact, portable typing device with customizable switch options. It suits hobbyists who prefer low profile switches and value multiple connectivity modes, including wired and wireless. The kit supports both staggered and ortholinear layouts, making it flexible for different typing preferences.

Key Features

Hotswappable PCB allows easy switch replacement without soldering, enabling quick customization or maintenance.
Multiple connection options: wired only, dual mode (Bluetooth and wired), and tri mode (2.4GHz wireless, Bluetooth, and wired), providing flexibility for different use cases.
Low profile design with a front height of 12.5mm reduces finger fatigue and offers a sleek typing angle.
Includes sound dampening foam and silicone pads to reduce typing noise and improve acoustics.
Supports both staggered and ortholinear layouts, accommodating different typing styles and preferences.

Build Quality

Anodized aluminum housing offers durability and a solid feel without excessive weight.
FR4 plate provides a balance of rigidity and flexibility for typing comfort.
Includes Kailh low profile stabilizers designed to reduce key wobble and noise on larger keys.

Connectivity

Wired connection uses USB-C for reliable and fast data transfer.
Dual and tri mode models include batteries, enabling wireless use with Bluetooth or 2.4GHz dongle for reduced cable clutter.
Tri mode adds a USB dongle for 2.4GHz wireless, which may offer lower latency than Bluetooth in some scenarios.

Compatibility and Customization

Supports VIAL firmware, allowing users to remap keys and customize layers without complex tools.
Compatible with various operating systems, though specific OS support is not detailed.

Trade-offs

As a 40% keyboard, it lacks dedicated function keys and navigation clusters, which may reduce efficiency for some users.
Low profile switches and stabilizers may feel different from traditional mechanical keyboards, requiring adjustment.
Battery life and wireless latency details are unknown, which may affect wireless usage expectations.
Only the tri mode model includes a USB dongle; others rely solely on Bluetooth or wired connections.

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