Keyboards

A'sKey SylvaTwin

A wireless, split, ortholinear DIY keyboard kit with a 25mm index-finger trackball and an OLED, powered by AAA batteries.

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

A'sKey SylvaTwin
Image: © A'sKey (Manufacturer image)
~¥20,000

Where to buy

No US retailer found yet. Official site

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Pros

  • Built-in 25mm trackball operated by the right index finger
  • Runs on AAA batteries, so replacing them is enough when they run out
  • OLED shows connection status and battery level
  • Runs ZMK firmware

Cons

  • Requires buying extra parts separately and soldering
  • Sold only within Japan; no overseas shipping
  • Currently out of stock
  • Tracking feel may vary depending on the trackball used

Specs

SplitSplit
StaggerOrtholinear
TentingNone
KeywellNo
Thumb clusterNo
Keys52
LayoutsCustom
SwitchesLow-profile
Hot-swapYes
FirmwareZMK
DIY kitYes
ConnectivityBluetooth
OSwindows, macos, linux, ios, android
Released—
Sources
AD · detail-mid

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