Cooler Master Silencio S400 mATX Tower W/Sound-Dampening Material, Sound-Dampened Steel Side Panel, Reversible Front Panel, SD Card Reader, and 2X 120mm PWM Silencio FP Fans

I do both audio engineering and 3D work, so I needed a case that could be quiet when I was recording and cool when I was rendering. This case has been perfect. First, it's made from quality steel, every plate and component feeling tough and well made. Then it's got so many terrific options. The front panel can be opened wide to allow unrestricted airflow or closed for silent work. The noise level drops significantly when the panel is closed due to the sound absorbing padding built into the door. Also, the door is reversible; I reversed mine as soon as it arrived. It's not a super easy process to do, so it's not something you'd want to do multiple times, but it's easy to enough to get done. And it's worked perfectly since I reversed the panel. Further, the top of the case has an opening that can be filled with a magnetically placed sound-baffled panel for quiet work or a dust filter more cooling. I'm currently keeping the panel in and while components do get warm, they never get dangerously warm. The two built-in fans that come with the case are silent at 500 rpm but push plenty of air at 1500. When I'm rendering something, I can set the fans to full-speed and let it go, and the components never overheat. Of course, it's noisy at that point, but audio editing never gets that demanding on the components. Finally, the top panel is super useful. The built-in USB ports are USB 3.2 Gen 1, so they take full advantage of my USB thumbdrives. The built-in SD card reader is USB 2.0, so it's slower than it should be, but just having it there is super useful without having to get an extra component for my desktop. The lights are very discrete. The power is indicated by a single dim light on the top of the case and the reset button is combined with the drive access light. Also, the headphone jack works perfectly and is very sturdy. I actually had an accident where I yanked on the headphone cable while it was plugged in, bending the plug of my headphones hard. Despite ruining the headphone cable, the plug in the case was unharmed and still works perfectly. This box is TOUGH. It's not pretty. On my desk it looks like a big black tomb. My CPU cooler is programmed to change to red when it's getting warm, and I am able to see the light from the cooler against the inside of the case through the front filter, so I usually leave the door open so I can peek in. But it is hard to see in a fully-lit room. I will likely try to add an RGB strip at some point to make watching that color change easier. But this box is just what I needed. It's versatile and practical, can be silent when it needs to be and allow airflow when required. Also it comes complete with all the screws and risers and every part you need. It has a lot of versatility in that you can reposition the drive chassis and remove the 5.25" drive bay to add more fans. I've removed both just to open up the air flow. And I had no trouble running cables behind the plate for easy cable management. Really happy I found this perfect AV computer case.

K. So, it's perfect in all respects minus the following: The normal side of the UPS/HDD shroud needs to open or something. GL flipping the internal ECO switch on a UPS without that. Or other stuff you may have tucked under there. You may be able to fit 140s in the front, but you're not gonna get any more airflow because while you have the mount holes, the opening is the same size. Myyyybe a slight bit difference, but... just consider those 120s unless you already have 140s. The screen cover for the top really needs to work together with the solid cover. It's one or the other. Now mine's blowing out so I just put the screen aside, but I'd like to be able to have that magnet screen and still have the top cover. The bottom screen is clearly an afterthought. It's just a loose screen. Kind of a joke, but better than nothing I suppose. Finally, "Silent" case is a unicorn. I didn't know, I wanted to believe, I know better now. All that said, this case is gorgeous to look at. The cable management is good. Lots of drive mountings, with expandable front port - rare these days, especially in a micro tower. It was fine to work in considering the tight space of the form factor. I didn't get left thinking "who designed it this way and why would they do that" at any point as far as mounting and cabling. I did have some trouble with the HDD cage having the extra brackets for a 3rd HDD. Kinda tough to remove if your cables drape below the shroud at all, because it catches. And with a 3rd drive it would be tough. I thought the extra option of a 3rd would be nice for possible random need to expand, but realistically it's too tight. But, some tin snips could take care of that, though i managed without any such modifications and it's not a design problem, just a byproduct. Great case. Built well, sturdy, pleasant to look at, and one of the few ones of this caliber without clear sides and with expansion on the front and nearly every option you could want. And, there arent any sharp corners or anything but you should still take off your smartwatch ;)

The Cooler Master Silencio S400 is a top quality case, not even for the price, but overall. I used this case in a build for a friend and now I want one! I might get the S600 for myself though, so I have more room to work and put my stuff. Pros (plus many more): 1. Filters for air intake (big one up front, one on the bottom for the power supply, optional one one the top (included) 2. Quiet with the padded sides and a weighted reversible front door that closes magnetically with a satisfying clunk 3. Good airflow due to many fan placement options and cable management options around the back 4. Subdued look with no flashy advertisements or gawdy colors 5. Very easy to install 5.25" drive from the front, and 3.5" drives on the right side Cons (nothing worth taking a star from the overall rating): 1. 3.5" installation on the left side, under the 5.25" drive is easy... until you try to connect and route the cables that should be plugged in on the back of the drive 2. Side panel screws should have a few more pennies spent on them, never get all of them on right the first try 3. Feet of the case should be a little taller so the case doesn't have to be on a hard surface to get air into the bottom fed power supply

Downsized to this case from a mid tower since I am only using an mATX motherboard, and I'm loving it so far. The build quality is great and the airflow and thermals are decent for a quiet case. Looks very sleek and compact on my desk. The solid steel side panel is great as I don't care about showing off my internals and don't have to worry about shattering any tempered glass. Main issue I have with it is the PSU dust filter under the case. It is a filmsy metal mesh that is held in place by small flaps and feels cheap for something this price point. Should have been magnetic or a sliding filter like the 4000d airflow. Would be great if there is a version without the optical disk drive bay and instead allow mounting of 3 120mm fans in the front.

Una caja que rebosa calidad la mires por donde la mires y muy silenciosa.

Gabinete muito bem construído, sólido, encaixes muito bons e realmente abafa bem os ruídos internos. É minimalista e fica bem discreto no seu lugar. Como uso para um NAS, coloquei 4 HDDs e tive que quebrar a cabeça um pouco para colocar os devices, pois o manual deixa a desejar em algumas informações.

The quality of build of this case is superb. There has been so much thought put into designing and making it, I was surprised. The space provided for cables behind the motherboard is really useful, as is the same above the motherboard, at the top of the case where you more often than not need to plug the auxiliary power cables in. Things like the captive thumb-screws for the case sides, the appropriately placed attachment-points for cable straps and the oh-so-rare these days, optical drive bay, show CoolerMaster have really though things through. As they have with the many fan/cooler mounting-points and options. The push-pin mounting for SSDs is clever, so you can mount behind the motherboard and on top of the PSU tunnel, feels a bit odd but works. Proper screws would be more secure but limit where the SSD could be put. I do really like this case for all the thought that went into it, the plentiful accessories and the sheer quality of build. It's as solid as a rock.

I used a Silencio S400 to rebuild a PC that had good internals in a disappointingly cheap case. I didn't want a side window as I intended it to be used for work and don't want LEDs etc. The end result was very satisfying. Very good case, easy to build with and good quality.