Cooler Master MasterBox Q300L Micro-ATX Tower with Magnetic Design Dust Filter, Transparent Acrylic Side Panel, Adjustable I/O & Fully Ventilated Airflow, Black…

So first I’d like to state that this review is specifically for the Q300L model. Amazon does this annoying thing where they mix all the reviews of all the models together and I can’t stand it so I’m just stating the model flat out.

I just built my 10 year old nephew’s PC using this case and I have to say that I was very surprised at how much I loved building in this case. Originally I bought the Compucase HEC HX300 case for 30$ from Newegg and I was just frustrated at the lack of air flow from that case. It only had room for one fan which was the back exhaust and that’s it. It didn’t even have holes for the power supply’s intake fan! It was my fault for not researching enough and buying something so cheap. Then I did a little research and came across this case. It is only 50$ but has everything I want. I’ve seen PC builders on youtube build with this case and they all had great things to say.

So the first thing I like about this case is obviously how much airflow it allows. It’s an interesting design because there are holes all over the top, all over the bottom, and all over the front and you can install 4 fans if you wanted to (2 up top, 2 in front, 2 in bottom) in addition to the included exhaust fan at the back making it support up to 5 fans! Now with all those holes you might be thinking this is going to be an ugly case but as you’ll see in the pictures this is not the case (pun intended) and it has very sleek looking dust filters to cover the top, front, and it’s not obvious from the picture but it has a filter on the bottom as well. I was pleasantly surprised to see that the filter is magnetic which made removing them to install my fans a breeze (pun intended). I also imagine cleaning them when they get dirty will also be very simple. You can simple remove them and just rinse with water. One tip when installing fans is that since there’s air holes all over, they actually made a very small indentation around the holes that you should screw in your fans. These “guides” are hard to notice but if you look closely you’ll see them. They have space for 140mm and 120mm fans depending on whatever you want. Air is able to easily flow through the filter so my air flow issues were resolved!

The case also looks very nice in my opinion. I have the black model just because that’s what my nephew wanted but in review videos I’ve seen, the white one looks very nice as well. Cable management at the back is pretty good too and the case comes with a lot of zip ties. The filters I mention above are also very aesthetically pleasing. The power button, 2 USB ports, headphone jack, and speaker jack are on the side which I don’t mind. The interesting thing is that this IO panel can be unscrewed and moved to the other side which is nice. The clear side panel is acrylic but it’s a 50$ case so it’s fine. It doesn’t look bad at all. There’s also room in the cable management area for a 3.5” hard drive and 2 SSD’s inside the main area which is very good.

Overall the case was pretty simple to build in. It’s designed very well to maximize airflow while looking great. I think this is an excellent case especially for the price. If you’re in the market for a cheap but good PC case, then you my friends have stumbled on a cheap but GREAT PC case. I would highly recommend this case and am willing to do even more expensive builds with this case in the future.

One final note I’ll add, I built my nephew’s pc with a Ryzen 5 1600 processor and RX 480 gpu reference model targeting 1080p gaming and the heat in my old case with that one exhaust fan was reaching around 87 degrees C. After I added two intake fans in the front and one exhaust fan in the top along with the back exhaust fan that comes with this case my temperatures went down into the mid 70’s while gaming which is great. If you want looks as well as functionality for a great price, go with this case.

o aproveitamento de espaço tem um motivo claro: HD e SSDs ficam por trás da placa mãe pendurados, é uma boa saída mas quem tem vários SSDs e/ou HDs num servidor doméstico este gabinete pode não ser interessante mesmo tendo um fluxo de ar tão bom, este fluxo não vai para onde os SSDs e/ou HD ficam.

o cabeamento nele é ótimo, a placa lateral transparente quando as luzes de placa mãe e outros componentes estão desligadas deixa o gabinete super discreto (prefiro bem mais assim)

Purchased this case for a budget Micro-ATX build. The case is very well built. Lots of value for your money here. It comes with everything you need, an exhaust fan, screws and even a bag of zip ties! Cable management was a breeze, plenty of space and holes to route wires through. I like the magnetic meshdust covers. Plenty of airflow on this case, my components stay cool and run smooth. Only slight little downside is the way the power supply is mounted with a bracket instead of flush against the back. Not a deal breaker but on my power supply, it slightly blocks the direct path for the power cable / socket. It still works albeit “forced” in. Overall though, I would highly recommend. Excellent quality and offering for the price.

Everything fit well, the cooling is not the best but works well enough for my use, and I love the design of this case.

Simply put, the title says it all. This is a pretty robust and cost-effective mATX compatible case that can pretty easily store some larger hardware. Cable management is not the most comfortable if your cables are shorter than expected, but with it being a small form factor, that’s probably the worst case scenario. The case is a bit larger than it looks on the screen, though, so fitting it in a compact spot is going to require some thought, but at least the airflow is respectably good and can be improved with some extra fan installations.