Keyboard Builders' Digest
5% off! Keyboards and accessories from Apos.
Keyboard Builders' Digest / Projects

ULK keyboard

A low-profile split keyboard with Corne 42 layout and Cherry ULP switches: ULK by Goga64.

KBD.news
Published October 16, 2025
Creators! Feel free to tip me off about your keyboard related projects to bring them to 150,000 readers!

Goga64 (aka Goga_OO) released the ULK, a 6 mm low-profile split keyboard with Corne 42 Layout and Cherry ULP switches. Made to be used on top of a laptop keyboard to provide the ultimate split experience on the go.

The batteries on the photos are not from the final design, but act more as a placeholder before the small batteries ship […] V2 coming in about a month with PG1316 support and solar charging for infinite battery life :) – Goga_OO.

Features

  • 42 keys (6x3+3)
  • Cherry ULP or Kailh PG1316S switches, SMD
  • SuperMini NRF52840 (nice!nano V2 compatible)
  • power switch, reset button
  • ZMK firmware
  • Height: about 6 mm

This design is still under development and has some issues! Due to the availability of the ULP switches, only the clicky version was available which is nice for home, however, too loud for work at public places.

Pic:

Resources

Do you like this post? Share, donate, subscribe, tip me off!

Published on Thu 16th Oct 2025. Featured in KBD #200.


Related

Tempest v2

The updated Tempest by Oliver Thurley features a snap-off pinky key.

Avocado V3

An update to Auryn's Corne clone: the split Avocado V3.

Split bluetooth keyboard

TerranceN made a split Bluetooth 36-key keyboard with self-milled PCB.

The naked split strikes back

The naked split ortho 40% by onebigdoor is back with fully addressable rgb backlighting (gallery). Still without plate, case and PCB.

FoldKB split ortho using standard keyset

The FoldKB by friglesnart and bakingpy is a split ortho using standard keyset.

×
top