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u/Stefak's ErgoTravelXT is a foldable split keyboard with XT60 connectors.
Published April 19, 2022

The ErgoTravelXT by Stefak aka FIXMBR is a portable low-profile keyboard with XT60 connectors, based on jpconstantineau's original ErgoTravel (here).

Github repo:

Changes from the original ErgoTravel

  • Kalih Choc switches only (no MX switches)
  • Tighter key grid (only 17.5x16.5mm Kalih keycaps supported)
  • Removed LEDs ("because I was lazy")
  • One extra key
  • 10 XT60 connectors
  • Foldable
  • Connectable (if you connect the two halves you don't need the TRRS cable)
  • And here is a short video demonstration:

    Btw, this keyboard isn't wireless (although it could be with Bluetooth enabled controllers instead of the Pro Micros).

    The halves communicate over the blue TRRS cable OR the two yellow XT60 connectors. Electrically there is no difference between them. "Black XT60s are purely structural."

    Published on Tue 19th Apr 2022. Featured in KBD #75 (source).

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