Keyboards

mki0002ozlet ckb640tb OKBall

The ckb640tb (OKBall) is a prototype wired DIY split keyboard kit with 40 ortholinear keys, a trackball and a rotary encoder.

Key specs auto-matched against source pages · Last verified: 2026-10-17

mki0002ozlet ckb640tb OKBall
Image: © mki0002ozlet (Manufacturer image)
~¥15,000

Where to buy

View at BOOTH (Anshin-BOOTH-Pack)Official site

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Pros

  • Keymap editable via Vial on QMK firmware
  • Built-in trackball and rotary encoder
  • Plates support either choc or Cherry MX switches

Cons

  • Prototype with known issues such as MCU placement
  • Auto mouse layer is not implemented
  • Requires soldering and assembly; currently out of stock

Specs

SplitSplit
StaggerOrtholinear
TentingNone
KeywellNo
Thumb clusterNo
Keys40
LayoutsCustom
SwitchesMechanical
Hot-swapNo
FirmwareVial
DIY kitYes
ConnectivityUSB
OSwindows, macos, linux
Released2026
Sources
AD · detail-mid

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