Cooler Master MasterBox Q500L Micro-ATX Tower with ATX Motherboard Support, Magnetic Dust Filter, Transparent Acrylic Side Panel, Adjustable I/O & Fully Ventilated Airflow

I was worried at first after reading some of the low star reviews, understanding ordering anything online is a bit of a gamble. BUT, I was one of the lucky ones, This case is amazing! Yes it is THIGHT, that's to be expected, so I tore out the guts from my REDUX pre-built that was Way too large. And it came together without compromising performance. A lot of the bad reviews were about insufficient thermals, considering the case is extremely modular, it's fairly easy to achieve proper airflow if you are creative enough the fan placement, it may have been a different story if I was air cooling rather than water, but my large 240mm radiator fits just fine. Having cool air come from the bottom and front, and exhaust hot out the top and back, my thermals are holding strong. The dust filters are a great addition for aesthetic and functionality. But if you have a 2 or even 3 fan GPU you may struggle to fit it. Overall I'm giving it 5 stars because as a experienced PC builder it was at most a 5/10 for difficulty and a 10/10 for style. Material is sturdy and well put together. And noise is all about fans and airflow so weigh your options there.

I ordered this case the day it got released, before seeing anyone review it, or without thinking twice and all I have to say is...This case is fantastic. I decided to downsize from a Cooler Master Masterbox Pro 5 RGB (as seen in the pictures) and this case is perfect. My temperatures for my GPU (Vega 56) and my CPU (Ryzen 7 1700x OC'd @4.1ghz) are running cooler than ever. My GPU rarely gets about 55c, even during extended gaming sessions. In my old case, it would hit 80c all the time. My CPU runs a bit cooler now too, and my VRMs are nice and chilly barely reaching 60c. That's a far cry from the 95c temps on the VRMs I was getting in my old case. I have ZERO issues that others seem to complain about.People are calling it the "masteroven". Not even close. What's so hard about adding fans?? The Deep Cool fans I have (3 120mm RGB and 2- 140mm RGB) allow it to run very cool. Air flow is not an issue at all. I have the very bottom 2 fans and the bottom front on pull with the fan on the 120mm rad and the 2- 140mm fans on top exhausting, taking advantage of the nature of heat rising and also getting excellent airflow through my blower style GPU and also across the VRMs of the motherboard. The PSUs fan exhausts up as well, following the path of the airflow.Building inside this thing was a dream, having built 8 PCs in the past year and a half, I have to say its one of my favorite cases to build in. Plenty of room to fit full size components, and plenty of room on the back of the motherboard tray for cable management with plenty of hold-down points for zip-tying.It looks awesome and exceeded my expectations. My next step is definitely a custom loop water cooling setup for both the GPU and CPU. I'll update this review when that happens.

The case is great, does exactly what you need it for and looks good. A few things to consider though being a small cheap case.Rear of the case may have clearance issues with taller motherboard heat sinks at the back panel. Especially so if you are using a all on one liquid cooling for your processor. I am using one and remounted on the top of the case and have no clearance problems.The power supply is a tight fit at the front of the case and exhausts upward. Place any case fans above on the top of the case before you install the PSU or its going to be tough to set the fan in.There are some sharp edges around the corner where the case material has been cut during manufacturing.

The case is very strong and well built. No sharp corners or edges anywhere and everything is very well laid out for such a tiny case. I went from a Rosewell Full Tower (nearly 36" x 36"x 10"), the biggest case I could find at the time, for a Threadripper build nearly 5 years ago. This Q500L case literally fits inside the old case.The only two real problems with this case the power supply (with a full ATX board) mounts in the upper front of case and blocks air flow to the CPU cooler. Only way to solve this would be an external power supply or a fan above the power supply. Also, the mesh holes for the case could have been bigger to allow more air flow, at least where you would mount fans.I installed a AMD 1950x Threadripper, ASROCK x399 full ATX MoBo inside the Q500L case, with a BeQuit Dark Rock Pro TR4 cooler, Cooler Master MWE Gold 850 V2 and Sapphire Rx 6700xt (dual fan) Video Card. Everything FITS!!! (accept the front cover does NOT fit with Dark Rock Pro TR4 cooler).I like to do radical case mods, so this one is a work in progress... JayzTwoCents style, cutting holes and and modding. So far, I've only done custom snake skin paint job.Front cover will be replaced with something meshed for improved air flow. I also have ordered some custom video card power supply cables, the current ones work but look like crap.This is a work in progress... It runs very well with one rear exhaust fan, one front intake fan, one exhaust fan under GPU (blowing down or out side cover) and one exhaust fan above cpu/power supply. Cutting out holes for all fans would also improve air flow.As I stated before, the biggest draw back of this build is the power supply blocking air flow. An cpu AIO could be a possibility, but I really wanted to go air.This would be a great case for small form factor build, something with an APU or someone like me that likes to MOD and do something different.