I got this keyboard kit initially from Drop, and it was my first custom build. The PCB has been modded with Mill-Max & Holtite sockets to make it hotswappable. This kit shipped to me with one defect in the PCB: the right-most Fn key (in pictures) does not register keypresses. I've tried reprogramming the board, using different switches, and it just appears to be a defect. In lieu of this, the board has been programmed with the Fn key to the left of the arrow cluster. Additional specs/details: