Niuniu KB40 - 40% Custom Keyboard Kit [Group-Buy]

Niuniu KB40 – Compact High-End 40% Custom Keyboard

The Niuniu KB40 is an exceptionally compact 40% custom keyboard, designed specifically for enthusiasts who seek maximum efficiency, customization, and a unique typing experience. With its minimalist layout, premium materials, and innovative engineering, it delivers top-tier performance and design.

Ultra-compact • EC Technology • Premium Build • Optional Wireless (with dongle)

✨ Minimalism Meets Functionality

The 40% layout reduces the keyboard to the essentials, freeing up valuable desk space. Despite its compact size, the KB40 provides a full typing experience for advanced users thanks to flexible layer functionality and multiple layout options (staggered & ortholinear).

⚙️ Maximum Customization

The KB40 is a keyboard kit that can be perfectly tailored to your preferences:

• Supports MX and electro-capacitive (EC) switches
• Hot-swappable PCB – no soldering required
• Multiple layout options and configurations

🧱 Premium Build Quality

The case features a CNC-machined aluminum top and bottom, ensuring excellent durability and a premium weight. Additional features include:

• Gasket mount structure for a softer typing feel
• O-ring and damping materials for improved acoustics
• Non-slip rubber feet for stability

🔌 Flexible: Wired or Wireless

The KB40 is available in both wired and wireless versions. The wireless model supports 2.4 GHz, Bluetooth, and wired connectivity, as well as EC switches, and includes a battery—perfect for a clean, cable-free setup.

📦 What’s Included (Kit)

The package includes everything you need to build your keyboard:

• Aluminum case (top & bottom)
• PCB + daughterboard
• Plate (FR4 or aluminum, depending on variant)
• Gasket materials & O-ring
• Battery (wireless version only)
• Accessories & mounting hardware

Note: Stabilizers are not included. Plate-mount stabilizers are required.