Personally was always a fan of just going with the largest fans possible - surprised we don't see more cases designed around 140mm and larger. 200mm is much less common but has a more pleasing noise profile

I'm also a fan of that sort of setup. A Fractal Meshify 2 XL will fit a bunch of 140mm fans, or you can get the Torrent which is smaller but has 2x 180mm fans up front. I have both and would recommend them, though the Torrent is a tight fit for a big board, and the shield on the back of the Asus W790 motherboards interferes with the cable routing grommets on the motherboard tray, so you have to remove them.

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