Uh ... cool! He says "48-layer circuit board", so my initial guess is those are not super-cheap, no. I think a regular PC motherboard (which is not a very simpl

Uh ... cool! He says "48-layer circuit board", so my initial guess is those are not super-cheap, no. I think a regular PC motherboard (which is not a very simple board) has 8-10 layers. 48 is a lot.