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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

4.6 4.6 out of 5 stars 338 ratings

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Silencio S400

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About this item

  • Sound dampening material – sound dampening material for optimal noise reduction (front, both side panels and top)
  • Removable sound dampening cover – The top cover panel can be removed to increased ventilation when need
  • Reversible, steel front door – a reversible mounting system allows the door to open from either side of the case
  • Silence fans – silence FP 120mm PWM (8001400 RPM) fans for a whisper-quiet performance and rubber padding to reduce noise vibration
  • Sd card reader/ Headset jack – the I/O panel features an SD card reader and single 4 pole headset jack for simultaneous Audio and microphone capabilities

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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
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
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Price-7% $121.46
List:$129.99
$53.99-12% $78.99
Typical:$89.99
$99.99$49.99-25% $89.99
List:$119.99
Delivery
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Customer Ratings
Quality of material
4.5
3.0
4.4
4.2
3.2
4.6
Easy to remove
4.4
4.5
4.0
4.1
4.2
4.9
Value for money
4.0
3.8
4.4
4.2
4.1
4.4
Noise level
4.0
4.3
3.6
4.4
4.2
4.5
Sturdiness
4.4
4.2
3.3
Sold By
Amazon.com
ZalmanUSA
Micro Center
Antec Prime
ZalmanUSA
Antec Prime
case type
mini tower
midi tower
mid tower
mid tower
full tower
mid tower
motherboard form factor
ATX
ATX
mATX, mini ITX
ATX, M-ATX, ITX
ATX, Micro-ATX, Mini-ITX
Extended ATX
material
Alloy Steel
Alloy Steel, Plastic
Tempered Glass, Alloy Steel
Polycarbonate (PC)
Alloy Steel
Metal
cooling method
Air
Air
Water, Air
Air
Air
Air
number of usb ports
2
3
2
3
fan count
2
2
5
1
3

From the manufacturer

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main

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Make It Yours.

We're all about the things that make building a PC such a rewarding experience. The sense of achievement. The joy of making and creating something uniquely yours in form and function and, of course, the thrill of bringing your creation to life without melting your components.

Silencio S400

Silence Has A Sequel

The Silencio is a silent case that makes no compromises in thermal performance. Sound dampening material surrounds the system build, rubber padding cushions all included fans, and a removable cover shields noise that escapes from the top panel.

  • Silencio Design
  • Sound Dampening Material
  • Reversible Mounting System
  • Silencio Fans
  • Seamless Sound-Dampened Steel
  • Fron, Bottom and Top Ventilation
  • Silencio Technology
Sound-Dampening
sp

Media Connectivity

Ample Expansion

 Reversible Steel Door

Media Connectivity

The I/O panel features an SD Card Reader and two USB 3.2 Gen1 for rich connectivity. A single 4 pole headset jack for simultaneously audio and microphone capabilities.

Ample Expansion

A total of five 2.5" and four 3.5" drives can be mounted using a tool-less system. Versatile cooling options, and depending on your preference with or without ODD bay.

Reversible Steel Door

Reversible mounting system, capable of opening in either direction. A hinge system of magnets and rubber stompers makes the switch easy.

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Product information

Technical Details

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Additional Information

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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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


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Product Description

The Silencio is a silent case that makes no compromises in thermal performance. Sound dampening material surrounds the system Build, rubber padding cushions all included fans, and a removable cover shields noise that escapes from the top panel. For Optimal noise reduction, The steel side panel features sound dampening material. For demanding systems, The top panel’s sound dampening cover can be removed for increased ventilation. Paired with the front panel’s ventilation, directionally taking in air through the mesh, silence can be accomplished without sacrifice. The subtle ventilation takes in air from three sides of the sound-dampened front door, with the mesh filter aimed toward the bottom for an efficient intake of air.

Customer reviews

4.6 out of 5 stars
4.6 out of 5
338 global ratings

Customers say

Customers like the build quality and appearance of the computer chassis. For example, they mention it's made from quality steel, has a subdued quality, and has an attractive, sleek design. That said, opinions are mixed on the noise, adjustability, and airflow.

AI-generated from the text of customer reviews

25 customers mention22 positive3 negative

Customers like the build quality of the computer chassis. They say it is made from quality steel, and every plate and component feels tough. The door is very solid, and the case is high quality over all. Customers also appreciate the subdued quality and solid throughout. Overall, customers are satisfied with the build and structure of the case.

"...First, it's made from quality steel, every plate and component feeling tough and well made. Then it's got so many terrific options...." Read more

"...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..." Read more

"...It's very clean and has a subdued quality, which is exactly what I was looking for...." Read more

"...The materials are very good and solid throughout for the price...." Read more

12 customers mention10 positive2 negative

Customers like the appearance of the computer chassis. They say it has an understated design and is sleek. Customers also mention that the front panel is impressive and works great for a professional looking yet silent case.

"...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..." Read more

"...4. Subdued look with no flashy advertisements or gawdy colors5...." Read more

"...(and attractive) profile.I'm not entirely satisfied with the price...." Read more

"Pros:- Attractive, understated design. No flashy LEDs. No massive, chrome-plated brand logos...." Read more

7 customers mention7 positive0 negative

Customers are satisfied with the quality of the computer chassis. They mention that it's a great case, nice, and compact. Some say that it is almost perfect.

"...Fits my reg mATX Mboards just fine. no on ATX or bigger boards. Nice case overall." Read more

"Its a great case, pleasure to build in but its a little too expensive for what you get...." Read more

"Amazing case, I’ve never seen anyone else with this case or post this case but I would highly recommend it...." Read more

"Great case, quite and clean." Read more

5 customers mention5 positive0 negative

Customers find the installation process of the computer chassis to be easy. They mention that it's quiet, easy to build in, and ready for any setup.

"...it's not something you'd want to do multiple times, but it's easy to enough to get done...." Read more

"...5. Very easy to install 5.25" drive from the front, and 3.5" drives on the right side..." Read more

"...Finally, with the 4 SSD bays and 4 HHD bays, the system is ready for any setup one may desire...." Read more

"...Building was very easy. Easy to take off the front panel. The internal cables for the front headers are lined up cleanly...." Read more

5 customers mention5 positive0 negative

Customers are satisfied with the performance of the computer chassis. They mention that it works well, the headphone jack works perfectly, and is sturdy. Some say that it's fine to work in considering the tight space of the form factor.

"...the headphone cable, the plug in the case was unharmed and still works perfectly. This box is TOUGH...." Read more

"...It was fine to work in considering the tight space of the form factor...." Read more

"...serve as the new home for my home server hardware, and it serves that function admirably...." Read more

"great case works just as advertised!..." Read more

22 customers mention15 positive7 negative

Customers are mixed about the noise of the computer chassis. Some mention it's extremely quiet under regular usage, while others say it'll be loud with tops in it.

"...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...." Read more

"...I'd highly recommend this case if you want something quiet, stealthy, with no RGB or any gimmicky features...." Read more

"...The top has no such sound dampening and since it's literally the only place you could put an AIO water cooler (unless you want your Rad tubes up),..." Read more

"...2. Quiet with the padded sides and a weighted reversible front door that closes magnetically with a satisfying clunk3...." Read more

9 customers mention5 positive4 negative

Customers are mixed about the adjustability of the computer chassis. Some mention that it fits their requirement very nicely, has no issues fitting in their components, and is highly adaptable. However, others say that it's not the seamless fit they were hoping for, is too tight, and that high end video cards do not fit.

"...Fortunately, the rest of the case is well built. I had no issues fitting in my components, and there was plenty of space for extra drives and a big..." Read more

"...be nice for possible random need to expand, but realistically it's too tight...." Read more

"...This case fit that requirement very nicely. In spite of having several fans in the unit and a rather hefty GPU, it is silent!..." Read more

"...Highly adaptable, however my mATX mobo-case connections at the bottom don’t match with the cutouts, and the power supply blocks half of the cutout..." Read more

8 customers mention5 positive3 negative

Customers are mixed about the airflow in the computer chassis. Some mention that the two low-volume fans keep ventilation fine enough for mid-ranged builds, while others say that the front panel restricts airflow enough that by opening the panel door they find it hard to control airflow and noise from internal fans.

"...and practical, can be silent when it needs to be and allow airflow when required...." Read more

"...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..." Read more

"...Cons:- Insufficient ventilation for PSU. The case feet are too short to give sufficient space for air to pass through under the case...." Read more

"...hardware support for cable management, and the two low-volume fans keep ventilation fine enough for mid-ranged builds...." Read more

Perfect case for AV work
5 Stars
Perfect case for AV work
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.
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Top reviews from the United States

Reviewed in the United States on July 6, 2020
Color: Silencio S400Verified Purchase
Customer image
5.0 out of 5 stars Perfect case for AV work
Reviewed in the United States on July 6, 2020
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.
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10 people found this helpful
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Reviewed in the United States on June 18, 2021
Color: Silencio S400Verified Purchase
One person found this helpful
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Reviewed in the United States on May 8, 2021
Color: Silencio S400Verified Purchase

Top reviews from other countries

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Evandro Araújo D´Albuquerque
5.0 out of 5 stars Muito bem construído
Reviewed in Brazil on March 13, 2024
Color: Silencio S400Verified Purchase
LG4
5.0 out of 5 stars Perfect for HTPC build if space is not a problem.
Reviewed in Canada on July 12, 2022
Color: Silencio S400Verified Purchase
bonnand lionel
5.0 out of 5 stars Top
Reviewed in France on December 29, 2022
Color: Silencio S400Verified Purchase
One person found this helpful
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domenico
5.0 out of 5 stars case premium
Reviewed in Italy on August 4, 2020
Color: Silencio S400Verified Purchase
One person found this helpful
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GLOSSAN
5.0 out of 5 stars Caja compacta y silenciosa.
Reviewed in Spain on February 19, 2020
Color: Silencio S400Verified Purchase
One person found this helpful
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