Cooler Master CMP 320 Mini-Tower mATX Case Review

Hardware Support

This is a smaller case, so thinking you’ll get an enormous motherboard and RTX 4090 in here is going to end in a bad time… and another PC case. Alas, this little box isn’t hopeless, and for those wanting a case with a smaller footprint, it’s got some impressive clearances. There’s around 18mm behind the motherboard, so think cables aren’t a problem here.

There’s around 220mm for the PSU, but if you remove that HDD cage, you can expand that significantly. Cooler Master recommends no more than a 160mm PSU, likely to allow room for its cables too.

There’s a little over 160mm clearance for the CPU cooler, so most tower coolers with 120mm fans should fit just fit. Something larger like the Noctua NH-D15 will fit, but it’ll be the width of an atom from touching the glass.

The case doesn’t is plenty long though, with an impressive 365mm of length for a large GPU. However, with 160mm width, you will not be getting something like the RTX 4000 series in here, as the PSU connector alone would be butting up against the glass.

There’s room for a good amount of cooling in the top of the case, with a pair of 120mm and 140mm fan mounts. It’ll even take a 240mm or 280 liquid cooler.

You could put a 120mm fan or AIO cooler on the rear fan mount.

The case supports a good amount of storage for its size, albeit thanks to M.2 drives, you don’t need too many bays in cases these days.