Split keyboard · Batch 01
Pure ergonomics in
modular form
An ultra-compact split wireless keyboard with removable
optical trackball and interchangeable modules.

21 keys a side · Docking trackball
CAD renderArchitectural foundations
01 / Navigation
A trackball between your hands
A 25 mm ball on three ceramic bearings, exactly as tall as the case. It docks to either half and runs from the keyboard: no battery to charge.
02 / Modular
A dock on every wall
Four magnetic USB-C docks on each half, with brass pins that line each module up. The trackball is the first module; more are planned.
03 / Firmware
Wireless, and yours to change
Bluetooth to your computer and between the halves. Open-source ZMK runs every key and layer, and every one of them can be changed.
Technical Specifications
Dimensions, electronics and firmware, as designed.
- Switches
- Hot-swap MX
- Keycaps
- Standard MX, all 1u
- Pointing
- Docking trackball, PixArt optical sensor
- Firmware
- ZMK, QMK
- Docks
- Four magnetic USB-C docks per half
- Each half
- 129 × 91 × 21.6 mm
- Layout
- Ortholinear, 21 keys per half
- Key pitch
- 19 mm
- Tenting
- 10, 15 or 20 mm legs
- Trackball module
- 46 × 46 × 21.6 mm, 25 mm ball
- Controller
- Nordic nRF52840
- Wireless
- Bluetooth LE, AES‑128 encrypted
- Battery
- Rechargeable LiPo per half
- Charging
- USB-C on each half or any dock
- Trackball power
- From the dock, no battery
Batch 01
Join the Batch 01 waitlist
Planned reservation pricing$1 reservation · $150 at launch
100% Refundable · Limited Release
Read the Reservation Terms.