ASUS ROG Xpander enables 4-way SLI on Rampage III Extreme

[Kinc]

I would imagine this is meant for benchers in which case the whole setup would probably be open air. It's a neat idea, especially if you have to insulate the add on card for LN2 runs, it should be easier to do.

You are correct. It is only to give the option of 4 pcs GTX 480 for the truly extreme 3D overclockers. It is NOT for a ATX chassis based system. It makes little sense to build a gaming system with 4 480.