Cooler Master CMP 320 Mini-Tower mATX Case Review

Complete System

Building inside this case was pretty straightforward. It would have looked much better if I actually had a micro-ATX board, but I’m waiting on new motherboards and stuff for case reviews, so this will improve. Anyway, back to the case!

There’s certainly more than enough room here for some decent hardware though. Interestingly, an ATX motherboard “fits” as in it fits the height from the top of the PSU shroud to the top of the case, so that gives you some idea of the scale here, it is pretty tight. However, I was able to get a tasty AORUS RTX 2080 in here.

Motherboard routing was easy enough, and the huge cut-away behind the motherboard serves for cable management with a mini-ITX motherboard. However, an mATX would cover this, and you can then use the normal routing holes on the right.

The width of the case is the most limiting factor though, as I’ve said before, this is an RTX 2080 Ti and it is wide, but newer 4000 series RTX cards are REALLY wide and the PSU cable wouldn’t even fit with any of them. Alas, if you’re using an older Nvidia card you’ll be fine, and the new AMD cards should fit just fine too.

There’s no vertical pass-through on the PSU shroud, so you do have to route PSU cables over or under the GPU.

The two front panel fans look great and they’re set up to provide plenty of airflow right to your hardware. However, you could actually rearrange them a little and fit a third 120mm fan in the front if you so desire. However, with such a small case, two fans are more than enough for most.

Of course, with this being mATX it has just four expansion slots, and that’s something to keep in mind given that most GPUs take up several of them, this card uses 2.5 slots, so if you want multiple expansion cards, keep that in mind, or ya know, buy a bigger case and motherboard firstly.

There is a good amount of clearance in the top though, albeit some motherboards have huge VRM that can limit your options here, but a slim radiator should be OK in the top.

Overall, Cooler Master has a great-looking little case here. It’s got a stylish front panel, a lovely tempered glass window, and just enough features to keep the interior build clean and tidy.