Nyquist Game PadThis is one half of a Nyquist split keyboard made as a game pad. Keebio sold off some sets of incorrect PCBs at a discount. There is a problem with the circuit to connect the two halves. It can be fixed with some rewiring, but I left it alone and just made a big macropad.
There is white soldermask on only one side of the plate/bottom PCBs. This often happens if there is no copper on one side of the board. The PCB fabricator will omit the solder mask, since there is nothing to be soldered on that side. Since this is a split design that can be flipped over it would look odd to have one side with soldermask and the other would be bare fiberglass.