SharkoonQB ONE ITX Cabinet, 4044951016433 (ITX Cabinet)

I really love this case. Compact and minimal, and it was unbelievably easy to build in. I love that is has ventilation on all sides, and dust filters at every side panel. With a modular SFX power supply cable management is simple, too. It also has the best array of front I/O of any case this size that I've seen, that's a huge plus for me. Fits on a shelf underneath my desk, freeing up all my desk space. Surprisingly it fits a Noctua NH-U12A CPU cooler easily, although the heat pipes do press on the top panel a little bit, but not enough to make closing it a hassle. I highly recommend doing a 240mm AIO at the top, though. Dropped temps by over 12 degrees in gaming when I swapped to a top exhaust AIO. Took some tinkering to get it in there with a Cooler Master ML240L V2, but it was worth it.