Keyboard Builders' Digest / Projects
ANSIC
Yuburoll's ANSIC is a uniformly row-staggered 40-42 key split keyboard.
Published February 10, 2026
This blog is powered by 54 readers while read by 150,000. Donate like barraGOUDA, Derek Tam, and splitkb.com!
Yuburoll, designer of keyboards like the Modubu, KeeNoard, and Boardloaf, shared the ANSIC, a 40-42 key split board with uniformly row-staggered Katana-ish layout.
I made a new split keyboard for my illustration, CAD, and scripting work: which frequently uses ctrl+Y, right B, and pinky ctrl in one hand. This has uniform row stagger (0.5u), because of reversible PCB within 100x100mm design. And this may not be very ergonomic, but does not make too inconvenient hand positioning for my work. That's why I named the keyboard "ANSIC" - repose in Korean – Yuburoll.
Features
- 40-42 keys, symmetric layout, split spacebar
- MX switches, hotswap
- Pro Micro footprint
- reversible, under-100x100 mm PCB for cheap manufacturing
- TRRS connectors
- 3D-printed case
This was meant to be Yuburoll's first wireless design. That said, as of my understanding, the PCB works only in wired mode currently.
Resources
Published on Tue 10th Feb 2026. Featured in KBD #206 (source).
Related
Charybdis - Dactyl trackball keyboard
The Charybdis by Fmcraft is a Dactyl spin-off with well-placed trackball.
Pipar Sool
Rasmus Koit's Pipar Sool is a split wireless keyboard that uses a dongle while running ZMK.
TSBYM
The TSBYM is a custom ESP32 wireless split keyboard by cgxeiji, now with trackpads.
Tiny18
A tiny wireless split by k3peta: Tiny18 – and yes, the name refers to the number of keys.