they are for possibility my friends. possibility.

remember the ext port on the bottom of your SNES. it was so they could hook up the hard drive and the cd rom unit. then they shelved it. its likely left over from them having planned to attach it to the wiimote, and they didn't want to redesign and re-cast the thing. leaving it open to some possible future use. there are absolutely no electronic components to it though. it is for fastening only.