Keyboards

siren77 / ミナモトのものおき 真打42Air (Gen2)

A fully assembled, wireless split 40% column-staggered keyboard running ZMK, built on Kailh PG1613 ultra-low-profile switches with each half 9 mm thick.

Some specs could not be matched to a source · Last verified: 2026-10-17

~¥32,300

Where to buy

No US retailer found yet. Official site

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Pros

  • Each half is only 9 mm thick, so it can be used without a palm rest
  • Ships assembled; no soldering or building needed
  • Four thumb keys per side plus two extra mini buttons on each half
  • Fully wireless, running ZMK firmware

Cons

  • In the first batch, the right half types stiffer than intended (sold at a discount because of it)
  • Out of stock, and further production runs are undecided
  • The default Onishi keymap takes time to learn

Specs

SplitSplit
StaggerColumnar
TentingNone
KeywellNo
Thumb clusterYes
Keys—
LayoutsCustom
SwitchesLow-profile
Hot-swapNo
FirmwareZMK
DIY kitNo
ConnectivityBluetooth
OSwindows, macos, linux
Released2025
Sources
AD · detail-mid

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