Keyboards

splitkb.com Halcyon Corne

A 42-key split keyboard PCB with column stagger, sold by splitkb.com as a redesign of Foostan's Corne. Switches are hot-swappable, it comes in MX and Choc versions, and it accepts wired RP2040 (QMK/Vial) or wireless nRF52840 (ZMK) controllers.

Key specs auto-matched against source pages · Last verified: 2026-10-18

splitkb.com Halcyon Corne
Image: © splitkb.com (Manufacturer image)
Key layout
Image: QMK Firmware (Generated from QMK data (GPL-2.0))
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Where to buy

View at splitkb.comOfficial site

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Pros

  • Parts come pre-soldered, so no soldering is needed, and switches are hot-swappable
  • Arc-shaped three-key thumb cluster and staggered pinky columns
  • Modules (display, encoder, Cirque trackpad) attach without soldering
  • Tenting with tripod-mount pucks

Cons

  • The product is only the PCB; controllers, switches, keycaps and case cost extra
  • No number row, so numbers have to be reached through layers
  • Tenting requires buying pucks and a tripod separately

Specs

SplitSplit
StaggerColumnar
TentingAdjustable
KeywellNo
Thumb clusterYes
Keys42
LayoutsCustom
SwitchesMechanical
Hot-swapYes
FirmwareVial
DIY kitYes
ConnectivityUSB
OSwindows, macos, linux
Released—
Sources
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