There is a square four pin socket on my duodock board. It appears in the pictures I have seen that I could plug in a 12v atx power cable to it, or at least the plug on those will fit the socket.
I seem to be searching for it the wrong way.
Any ideas on search terms for google?
The closest I've come to findin out what it is was a translated Japanese Mod page. Not helpful enough, although still very cool, I think there may be a "Z" in the name of this cable if that joggles anything.