Goldfish Rev. C – Open Source Pro Micro Replacement

USD $20.00


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This is only for advanced hobbyist. There’s no support from this site. Please visit reddit or geekhack for community support.

You can flash keyboard firmwares with QMK Toolkit or other tools.

The board is half hand soldered. The price is slightly higher comparing to Elite-C or Proton C, because of the volume of this batch.

There isn’t a GB for this. When there’s enough demand, the board will be fully machine-assembled.


  • Open source
  • Hirose mid-mount USB Type-C connector CX70M-24P1
  • No onboard RX, TX or Power indicator LEDs

Bootloader: Stock Atmel DFU

Goldfish by Dr Derivative is released under the Creative Commons Attribution Share-Alike 4.0 License. More details on the Goldfish GitHub repo.

For other pro micro alternatives, see

More information at the Geekhack Thread and Deskthority wiki.


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