Corne Cherry V3 Hotswap Split Ergo 40% Kit (Black)

Corne Cherry Hotswap Split Ergo 40% Keyboard Kit

Designed by Kosuke Adachi (a.k.a. foostan). The designer receives a portion of the proceeds from every sale.

This is version 3.1 modified by 42. Keebs to include a power switch and battery connector for native wireless operation.

Build your very own custom split keyboard from scratch!

• Split 12×3 + 6 (40%-ish) ortho/ergo layout
• Supports Cherry MX-compatible switches
• Uses Kailh/Gateron MX hotswap sockets
• Supports in-switch RGB LEDs and RGB underglow (RGB LEDs not currently included)
• Optional OLED screens
• Includes a power switch and battery connector
• Fairly easy to build – based on Pro Micro controllers, but uses SMD diodes
• Tinned lead-free finish, black solder mask

Build guide in the GitHub repository

Kit includes:

• 2x main PCB
• 2x bottom plate made from PCB material (FR4)
• 2x FR4 switch plate
• 44x SMD diode (42 + 2 spare)
• 42x Gateron hotswap socket
• 2x TRRS socket
• 2x SMD power switch
• 2x Reset switch
• Brass standoffs and screws
• Acrylic covers

Available optional add-ons:

• Pro Micros
• OLED screens
• TRRS cable

Other parts required to finish build:

• 2x Pro Micro or compatible controllers (Elite-C etc.)
• 42x Cherry MX-compatible switches

Other optional parts not included in the kit:

• 42x SK6812MINI-E in-switch RGB LEDs
• 12x WS2812B/SK6812 (5050) underglow RGB LEDs