• Corne DIY keyboard with all-black keycaps and OLED screens, assembled on gray felt deskmat.
  • Top-down view of Corne DIY keyboard with black keycaps and OLED screens on a vibrant blue background.
  • Fully built Corne keyboard from DIY Kit with FR4 case and white keycaps, photographed on bright orange backdrop
  • Assembled Corne split keyboard using Corne DIY Kit with FR4 case and low-profile white keycaps on white background
  • Assembled Corne DIY split keyboard with matte black keycaps and OLED screens, shown against a soft white background.
  • Corne DIY FR4 Case Kit parts laid out on white background, including acrylic screen covers, 8mm standoffs, 10mm standoffs, screws, and rubber bumpons.
  • View of Corne FR4 Case DIY Kit with showcasing the matte black FR4 backplate and switchplate.
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Boardsource

Corne DIY Keyboard Kit – 40% Split

Corne DIY Keyboard Kit – 40% Split

Build your own Corne keyboard with a solderable PCB and minimalist FR4 case. One of the most flexible split layouts available, great for both first-time builders and experienced users alike.

The Corne is one of the most beloved 40% split keyboard layouts in the custom keyboard world. Originally designed by Foostan, its compact 3x5x3 layout, ergonomic columnar stagger, and flexible hardware support have earned it a loyal following. This DIY kit gives you the parts and freedom to build it your way, using a lightweight FR4 case and the option of a solderable PCB or an SMT PCB.

Looking for a premium aluminum Corne case? Check out Unicorne

Key Features

  • FR4 Case
    • A cost-effective and lightweight way to get into a layout start your build. Our FR4 case comes with all the hardware you need and acrylic screen covers.
  • Solderable PCB - Corne v3.6
    • Supports both MX and Choc switches, including Choc v2. DIY-friendly with modern features like per-key LEDs, underglow, OLED & nice!view support, power switch footprint, and more. Compatible with QMK and VIA firmware. For more information view the Corne Solderable PCB v3.6 page.
  • Wireless-Ready (BLE)
    • The solderable PCB includes footprints for a power switch and battery leads, making Wireless BLE builds with nice!nano or Supermini simple and clean. Compatible with ZMK firmware.
  • Flexible Layout
    • The Corne's 3x5x5 layout is compact and extremely ergonomic. It's highly recommended and a favorite for many, whether you're just getting into splits and want a 40%, or a long user looking to optimize. 
  • Customize Your Build
    • Choose everything from the case color to the controller, OLED display, hotswap sockets, and even cables, switches, and keycaps. Add exactly what you need to your kit.
  • Works With Unicorne
    • If you're using the Unicorne case, make sure to select a legacy plate to ensure compatibility with solderable builds.

Who It's For

This kit is ideal for anyone who wants to solder their own keyboard and tailor the entire experience to their preferences. It works well for: 

  • Builders new to split keyboards, configure a standard build with ease
  • Wireless builders using a BLE controller like nice!nano or Supermini
  • Enthusiasts looking to experiment with components and firmware
  • Builders looking to 3D print their own case, simply de-select the FR4 case

If you'd prefer to skip soldering, configure your kit with a Corne SMT PCB.

In The Box

Your final kit will depend on which options you select.

  • FR4 Case
    • 2x (Left and Right) Switch Plates
    • 2x (Left and Right) Backplates
    • Acrylic Screen Covers
    • 8mm and 10mm Standoffs, Screws, Bumpons
    • Adhesive Non-Slip Bumpons
  • Solderable PCB - Corne v3.6
    • 2x PCBs (Left and Right, 1 panel)
    • 2x RST Switches
    • 2x TRRS Jacks
  • Components
    • Default selections ensure the correct quantity for a complete build
    • Hotswaps and diodes sold in packs of 10
    • Switches sold in packs of 22

Shipping & Availability

Ships from Las Vegas, NV. Most orders ship the next business day.

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Why Buy From Boardsource

  • 🧠 Built by Ergo Keyboard Nerds

    We don’t just sell ergonomic keyboards, we use them, mod them, and obsess over them. Boardsource was created by two, Cole & Quinn we are enthusiasts, just like you. Whether you're new to split keyboards or deep in the hobby, we design and stock products we’d want on our own desks.

  • 💬 Customer Service Who Care

    Questions? Problems? Ideas? We’ve got your back. Boardsource is known for fast, helpful, and human support. No ticket mills or generic replies. Just real help from people at Boardsource who actually know the gear they sell.

  • ⚡ Fast Shipping, Always

    We ship fast, usually within 1 to 2 business days, because we know how frustrating it is to wait for an order. Every order is packed by us, right here in-house with care and speed. You will get tracking quickly, and your gear will be on its way before you know it.