Even very slight movement of air cools aluminum. I swear, I just let this chassis sit for 15 minutes on a bed in 68 degree temps. Feeling this chassis right now its easily 20 degrees cooler than the ambient temp. I should have a few PC heat sensors laying around, I want to hook them up to the chassis and see if this is really true because its kinda errie how it just stays cold, I just set it on my lap so I could type and I could feel the coldness through my pant leg. Here are some pics of a custom build for diosagain that is the first chassis to use the shelf system. This is a custom DIN 1.5 setup. The renders at the top of the post are the DIN 2.0 setup.
I should also add that this chassis is extremely lightweight, yet extremely rigid due to the fasteners and bends.