-2 Kolea PCBs for use as PCB and bottom plate.
This stenography keyboard was designed by http://www.40percent.club/
It is capable of installing 34 switches which not only covers all the keys used for a Steno board, but also leaves room for a few keys to be used as function keys.
The PCB supports in-switch LEDs and is powered by either a Teensy LC or Teensy 3.2.
The firmware is a modified version of StenoFW Arduino sketch.
See this post for more information about the board and firmware: http://www.40percent.club/2018/01/kolea.html