Originally Posted by wind_magic
The problem is the visual in your head is thinking normal motherboard and case.
Instead, think motherboard the size of a pack of cigarettes, fan the size of a quarter, and large metal enclosure.
Less like a bull in a shoebox, and more like a mouse in a gymnasium.
That bit I get; what I don't understand are the thermodynamics of a tiny fan inside an unvented box. With no circulation outside of the cubic inch of airspace, I am wondering what the fan could be for.