Aluminum Alloy Mini ITX Computer Case - Compact HTPC Desktop Case with Excellent Heat Dissipation & Expansion Holes | Perfect for Home Theater PCs, Hotel Computers & Self-Service Terminals

This is the most airy case I could find, for a passively-cooled PC. I'm still not certain it'll get quite enough airflow, but I haven't built it yet.This is mainly for use with either mini-ITX that have an onboard power supply (these will usually have a 19 V barrel connector in back) or normal mini-ITX boards + a Pico PSU. The case has a spot to mount an internal power-converter board, but I don't know what model you're supposed to use with it. There doesn't exactly seem to be a standard, for these things. I've seen at least two different patterns of mounting holes.The main way it could be much better is if they put a few holes in the bottom. I'm tempted to drill some of my own. Also, I wish it had been anodized, rather than powder-coated.Note that you cannot use even a low-profile PCIe card in this case, if you had any intention of trying. It's simply not tall enough.Given the caveats I mentioned, my rating is a little on the high side, but I spent a long time looking and this was the best case I could find that fit my priorities. I feel like it deserves some credit for that.