Great little case, let's me pack a lot of punch into a tiny package. If you are using 3.5' hard drives be careful with your power supply and/or radiators as it can get very cramped very quickly. Included fans are dead silent, had to check they were running a few times Great little case, let's me pack a lot of punch into a tiny package. If you are using 3.5' hard drives be careful with your power supply and/or radiators as it can get very cramped very quickly. Included fans are dead silent, had to check they were running a few times

very happy with this case. lots of features and very well made.
quality is on point.
I rate this case very highly. very happy with this case. lots of features and very well made.
quality is on point.
I rate this case very highly.

This a is a great case if you're considering a slient build with zero RGB. It's super silent and the airflow options still cool the components.
Cable routing options could be better but thats basically the same for all smaller cases This a is a great case if you're considering a slient build with zero RGB. It's super silent and the airflow options still cool the components.
Cable routing options could be better but thats basically the same for all smaller cases

I bought the S400 to build a Linux CCTV/web/file server using a Phenom 2 X6 on an AM3 mATX motherboard - the CPU fan was a 10 year old Coolermaster bought new with the Phenom 2 X6, and was quite noisy when used in the case the system lived in before this one, but after installing the system into this case and doing a few quick stress tests on the CPU to see what the noise was like I can report that the case does a very good job of damping the CPU fan noise. My only grizzle is that the 2x USB top panel ports are connected via a connector that doesn't work with the USB headers on the AM3 motherboard, but perhaps there is an adaptor I can buy -...view more I bought the S400 to build a Linux CCTV/web/file server using a Phenom 2 X6 on an AM3 mATX motherboard - the CPU fan was a 10 year old Coolermaster bought new with the Phenom 2 X6, and was quite noisy when used in the case the system lived in before this one, but after installing the system into this case and doing a few quick stress tests on the CPU to see what the noise was like I can report that the case does a very good job of damping the CPU fan noise. My only grizzle is that the 2x USB top panel ports are connected via a connector that doesn't work with the USB headers on the AM3 motherboard, but perhaps there is an adaptor I can buy - otherwise it's a top notch purchase!

Absolutely great for my first build! Would recommend. Absolutely great for my first build! Would recommend.

The Cooler Master Silencio S400 is great mini Tower case. Needs the only thing I would say is that the power supply section is a bit awkward to install. Overall great case to use. The Cooler Master Silencio S400 is great mini Tower case. Needs the only thing I would say is that the power supply section is a bit awkward to install. Overall great case to use.

Very happy with this case, purchased for my workstation and it is very quiet. Lots of room for extra bits and pieces when adding more HDD or RAM etc. Very happy with this case, purchased for my workstation and it is very quiet. Lots of room for extra bits and pieces when adding more HDD or RAM etc.

FYI It is black in person and not grey as the picture suggests. It looks very clean and is well built and sturdy. Not as super silent as I had hoped but does a good job considering I have 5 fans in the my build, and way more silent than my old case. FYI It is black in person and not grey as the picture suggests. It looks very clean and is well built and sturdy. Not as super silent as I had hoped but does a good job considering I have 5 fans in the my build, and way more silent than my old case.

This seems like a pretty good case. I've added a couple of 140mm fans and it's all extremely quiet. The only snag I can see is that I can't put it down on the carpet, it needs to sit on a solid base for unimpeded airflow. I do like the 2.5mm drive mounts. This seems like a pretty good case. I've added a couple of 140mm fans and it's all extremely quiet. The only snag I can see is that I can't put it down on the carpet, it needs to sit on a solid base for unimpeded airflow. I do like the 2.5mm drive mounts.

It is a very easy to build in, great cable management and the minimalist Design fits great into my Setup, the only down side is it is a little too big for me, I would say that is my fault tho, other than that it is a great case for the price! It is a very easy to build in, great cable management and the minimalist Design fits great into my Setup, the only down side is it is a little too big for me, I would say that is my fault tho, other than that it is a great case for the price!

Was a bit bigger than i was expecting (it might as well be a mid tower) and is actually jet black in colour rather than grey (which is sort of how it looks in the photos).
Build quality seems really good and can confirm that it is quiet, all side panels are coated with sound deadening material from the inside.
The price for being so quiet is that it can get a bit warm compared to a better ventilated case, definitely get another fan so you can have two on the front.

Definitely don't put this thing on carpet as the only intake for the power supply is from the bottom! Was a bit bigger than i was expecting (it might as well be a mid tower) and is actually jet black in colour rather than grey (which is sort of how it looks in the photos).
Build quality seems really good and can confirm that it is quiet, all side panels are coated with sound deadening material from the inside.
The price for being so quiet is that it can get a bit warm compared to a better ventilated case, definitely get another fan so you can have two on the front.

Definitely don't put this thing on carpet as the only intake for the power supply is from the bottom!

I bought this to build my first computer. The inside of the case is well organised and the entire build quality I found was very high. I also did not realise but a selling point of this case is that it is really silent so everything is rubber padded, an added bonus. I bought this to build my first computer. The inside of the case is well organised and the entire build quality I found was very high. I also did not realise but a selling point of this case is that it is really silent so everything is rubber padded, an added bonus.