Nice keyboard! Thanks for sharing. We now have documented examples of Codegen keyboards with SMK, Futaba, and Alps switches. The FCC ID won't tell us which it is, but the internal model number apparently does. The suffix letter seems to be S for SMK, F for Futaba, and A for Alps. Of course we already know which once we're inside. Here are links to an Alps example in the wiki and a youtube video of a Futaba version. Due to the current site problems the wiki link only works if you're not signed in.