Case with dual/redundant motherboards

[SDPCave]

I once saw a site on a company that made such a case, one board on each side, where the sides folded down similar to Apple's. Haven't seen it advertised since. Does anyone know of a case like that? The idea was all one could swap drive cables easily from one board to the other, in the event of failure or one could use two different boards. Appreciate any help.

 

[Neoplasia]

I remember seeing something similar. Can't remember where though, sorry.

 

[Usul]

You mean that while is ON and with Win/linux running you can just change mobo?