Clearly a contender
Puget Systems sent along an open air case that supports EATX motherboards. It’s pricey but quite well made. Check out our video!
Open air cases are a pretty niche market. The number of DIY users that are interested or willing to have their components fully exposed need to have some specific goals in mind. You could be a full time overclocker, looking for easy access to the CPU socket for LN2 or to hit that BIOS reset button. You could also be an enthusiast that is always swapping out components so the ability to bypass getting under a desk and removing a door makes things faster. Or you could just be a show off and want to be certain your friends and family see the gear you have purchased to power your PC gaming.
Just don't be someone with curious cats.
Puget Systems is a high end system builder based in the north west United States and though they don't plan on making a living selling these open air cases, called the Puget Systems EATX V1 Test Bench, they decided if they were making it, they might as well sell it too. Used primarily for the company's own internal testing and evaluation, the open air test bench is an acrylic structure that holds the power supply and storage on a bottom level along with the motherboard and other components up top, totally open to the elements.
It is expensive though, at $170.
The stand out features include support for a 120mm or even 240mm water cooler mount, triple GPU support and of course, as the name implies, the capability to hold EATX motherboards. Check out the full video review above and if you just want to see some more photos, click the link below!