S300 - Mini-ITX PC Gaming Case - Front I/O USB 3.0 Type - C Port - SFX Power Supply 100-130mm -Cable Management System - luminum Mini-ITX Motherboard Small Portable PC Case (PCIe 3.0 16X Riser Cable)

I like the case. It looks good and fits my bag well. Cable management is straightforward since the motherboard is mounted upside down and the airflow is logically designed. Adding a 12015 fan at the bottom is recommended to improve the thermal environment.

With size comes compromise, so if you’re looking to build a cutting-edge behemoth, look elsewhere... But what I needed was a modest quiet ‘living room-friendly’ gaming PC and this little fella fits the bill so well. There are challenges with such a small design, but with a little planning, they can be overcome. Mostly think about the power supply, if it's in budget, get a modular design (unlike me!) so you can route only the cables you need. Also take int account its size, I went with a BeQuiet3 which is small, but well-made made and even though it's only 350w, has enough juice to run the RTX5060 and Ryzen 5600. I ended up removing the front USB-C port entirely (my motherboard doesn’t support it) to make one less cable and provide room for a second exhaust fan. Temps are fine, there is a lot of ventilation on the sides and top, and I’m having fun playing more modern games again. I can definitely see why you wouldn’t buy this case and move up to something larger, but I love this little thing because it is small. The only bit I don’t really like is the ‘back’ of the computer, where all the wires plug in, is actually the side and on display in normal orientation, something that photos and videos of this case happily forget to show. So, I guess I need to buy an aesthetically pleasing power cable now, right?

It was a real squeeze, but I did manage to put it together. It was all fine until I realized that the GPU specially got really warm. I noticed Corsair do Slim Case Fans and I thought perfect and managed squeeze one in. Problem is they fit at the bottom and really it could do with something to blow the heat out the top. I decided to get the S400 model because as I was looking it up, it was only like an inch taller and wider. Moved it all into this new case and it solved it from the get go. CPU is like 10 degrees cooled when idle and the GPU sticks to 30 where it should. The S400 lets you have 2 full sized fans on the top and I think that's what the S300 needed. I gave this a 3 because the case itself is an amazing case, but I know most will look at this case first, but I recommend you consider the S400.

This is a great little case, its well build but badly designed. For an i3 no GPU ITX build it would be fine. I used an i7 and 3060 Ti - too hot. Temps are within range but with prolonged use (gaming) it would easily throttle. The GPU riser cable has a bend in it, meaning it curves against the GPU once installed. It get's too hot. The GPU layout is too tight, it was horrible trying to mount it. There is no space what so ever for fans once the PSU cables are installed. This means there is zero cooling to the case at all. Highlighted in red where fans should go - no clearence under MOBO for 120mm, PSU cables take up the 80mm slot.

Tudo nos conformes! Ótimo case.

My first ITX build and it went pretty smoothly with this case. It comes with a Gen 3 PCI-e riser, so be sure to configure that in your BIOS to set it to Gen 3 instead of Auto/Gen 4. You can only fit a a lot profile air cooler so pay attention to that as well. No regular size air coolers or liquid coolers. Installed a 120mm x 25mm case fan on the front part of the top panel. Wanted to do the same to the back part of the top panel but the clearance height is a lot smaller so you'll need to use a 120mm x 15mm case fan instead. Diagram says there's room for a case fan at the bottom as well but honestly I don't think that's possible as you'll need that space for the cables. But otherwise it's a great case that's smaller than the size of a shoebox. Top handle is nice but I don't think I'll be using that only when carrying the unit around - will put it into a bag or support the bottom.

This case does exactly what it is supposed to do. The materials feel high quality and it came well packed with nice soft foam protecting it inside the box. The steel might feel just a little thin on the side panels, but not any kind of problem and that helps keep this a bit lighter since it is supposed to be prtable tih the handle on top. The front panel cables for USB connections were actually much better quality than many much more expensive cases I have used. Very high quality and flexible and easy to use. Everything is finished nicely and there are no sharp edges or anything like that. The handle feels nice and sturdy, and I love that I can fit a full-size air cooler in this case. I have this setup with a 13600K, Deepcool AK620 air cooler, an ASUS Dual RTX 4070 GPU, and a Corsair SF600 PSU. It's the perfect portable rig !! Air flow is just fine. Setting it up with 2 exhaust fans (one slim 120mm on top and a 92mm in the rear and its plenty to keep air moving inside the case and everything running cool. The GPU has plenty of access to fresh air thru the well-ventilated case bottom. It was extremely easy to work in, with the one piece of advice I have for building in this case being.... Make sure that you hook up all wires and cables at the top of the motherboard BEFORE you install the CPU cooler. If you are using a large air cooler, once it's installed getting to those connections on top is basically impossible. Also, there isn't a ton of room behind the motherboard for cable mess, but this case doesn't have a side window anyway so stuffing excess cables neatly below the PSU was not a problem. You can't see any of it once the case is closed.

Awesome case, temperature was good, much cooler than my Fractal Ridge for some reason - despite its much noticeably smaller size (8.1L vs ~11L). Assembly was a bliss, no bullshit over-engineering but convenience in mind (I am talking about its construction, the placement of screws, motherboard orientation and front panel cable length). While a 120x10-15mm tall fan for bottom intake is suggested according to the manual, I could slot a 25mm tall 120mm fan underneath the motherboard just fine. Loosen the fan screws a bit if it makes noise, mine is then running almost silently. More work can be done with the language in the manual but it is a negligible point as it is overall intelligible. It come with all the screws you need for it as well as a dust filter and a few cable management tools, though really not much. I did not use them. 5700X3D ASUS Dual OC 4070 Thermalright AXP 90x53 Full copper Thermalright 120x25mm case fan at the bottom

So let me start off by saying this is a fantastic case! There's just enough room to snugly fit a full-size 2.5 slot modern GPU in it. I loaded a PNY RTX 3090 24Gb in it, which is like 295mm in length, and I can only describe the size of the case as though it was a "storage box" for the GPU. The fit is absolutely golden. The build went fine, Mini-ITX motherboard mounted just fine, SFX PSU is a little snug but the bracket it mounts to is removable so you can easily screw it in - it even has 6 screw holes if you want to fully secure it. I will say, with the particular SFX PSU I used, the cable management was a little rough, but it worked out in the end. Also the case does not come with fans, so I had to buy a Noctua 120x120x15mm fan. As for the CPU cooler, Noctua's NH-L9a-AM4 is no slouch. It fits with plenty of room, looks great in the case, and the metal emblem that it comes with for the front of the case JUST fits the metal trim at the bottom near the power button. Now for my one and only issue.. The front IO is a 8+1 pin connector meant to slide onto the motherboard front-panel IO header, but they pinned it incorrectly on my case. Note that the documentation is clear which pins it SHOULD be, it almost sounds like it uses normal front IO connectors as a result, but it has this connector (see images) which is pinned wrong. To fix this, I pushed the cables into the connector a bit, slid the tip of a knife in, and one-by-one removed the two power switch connectors and ran them to the right spots. Because this took me a lot of time to confirm which pins were which, and there's not a lot of documentation on it, I marked them in one of my images. For me, the pins were in a 2x2 square at the top, whereas they need to be in an inline 4x1 arrangement (on the side with only 4 holes, not 5). I tried to make it clear in my poorly mouse-dawn diagram, but you need to remove the two wires from the side with 5 holes, then put them on the lower two holes of the side with 4 holes. Once you do that, it boots fine, the LED for the button works, and the case is worth the time and money. Finally, I bought one more because I fear it'll go out of stock before my next PC build, so I wanted to ensure I had one just in case. Good cases are hard to come by sometimes and this one is one of the best SFF mITX cases I've seen. It may take a bit more work than a normal build, but it is absolutely worth it.