Cooler Master MasterBox Q300L Micro-ATX Tower with Magnetic Design Dust Filter, Transparent Acrylic Side Panel, Adjustable I/O & Fully Ventilated Airflow, Black (MCB-Q300L-KANN-S00)

Best money you can spend on a cheap case
The good:Very good value for money. Case is well built despite being so cheap. I have a full length RTX 5060 Ti in this with room to spare for fans on the front of the case. Cable routing options are good. Plenty of space to run and tuck cables behind motherboard tray. I like the subtle grey/black color scheme.The bad:It’s a little flimsy in spots, but it’s 40 bucks and not gonna be moved a lot.Overall:If you want a basic, small, cheap but still very capable case for your next build, this is it. Will probably by another for my next build.

Interesting Inexpensive SMALL Case – Challenging Build
An interesting little “small form factor” case. Key word here is “small”. Seems to be relatively well made. Option to move the position of the front panel is clever, BUT you have to be sure everything will fit. I moved my front panel to the top edge of the case (see photo) , but then had to “void my warranty” with a Dremel tool to get a Cooler Master HYPER 212 Halo air cooler to fit (it looks great).Plenty of room in back for cable management, plenty of room for a PSU. BE CAREFUL about the length of your GPU. Plenty of room for two 140mm fans in front. Had to use 120’s on top and in back. VERY little clearance between motherboard and frame of the two Cooler Master MF120(2) fans on top. The motherboard is actually touching the frame of the fans (!). But everything works fine.Also, very difficult (impossible?) to connect the ‘upper’ power cables to motherboard while in place. I routed the cables through the corner of the case, connected them, and THEN installed the motherboard.The case has “El Cheapo” break-out PCIE slot covers – but remember that this is a VERY inexpensive case.The overall case is quite aesthetic and well thought out. Just remember that there is not much room in the case, so the build may be challenging.

Amazing Case For an Amazing Price! (Model: Q300L)
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.

1) Cable management that does not suck, that’s a big advantage2) Can be placed under the monitor on the desktop, rubber pieces on the long side3) With 3 PWM-driven chassis coolers it is a silent beauty4) Overclocked graphics card temperature is below 65°, that’s very nice airflow5) The side panel is acrylic, not glass, which is so so, but pretty fine for a budget setup6) Buttons and USBs can be rebased at any side, but I just kept them as-is7) Very careful and lovely use manual, showing all necessary addons for different setups8) Loved the included rubber pieces for easy placing of the SSDsWould definitely recommend it!

O gabinete é ótimo e super bonito, o que mais me chamou atenção dele foi o design super compacto e a versatilidade de usar, mas apenas de ser bonito, ele tem os seus defeitos.O acrílico é super fácil de arranhar, enquanto eu estava mudando as peças do meu antigo gabinete para esse, eu deixei o acrílico encima da minha cama com todo o cuidado do mundo, porém, quando eu fui fechar o gabinete com o acrílico, eu vi um pequeno arranhão no canto inferior direito, de início eu não dei muita importância, mas com o reflexo da lâmpada do meu quarto eu achei vários e vários pequenos arranhões que só podem ser vistos na luz, eu simplesmente não entendi o que causou aquilo, já que eu tive o máximo de cuidado possível, mas para quem vai comprar esse gabinete, cuidem do acrílico!E de resto ele me agradou muito, acho incrível como a Cooler Master consegue fazer excelentes gabinetes com preços incríveis. Apesar de ser um gabinete M-ATX, tem como você colocar até 6 fans de 120mm nele que eu achei super top e bacana. Recomendo d+.