---
product_id: 141991329
title: "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"
brand: "cooler master"
price: "$1073"
currency: NZD
in_stock: false
reviews_count: 8
url: https://www.desertcart.nz/products/141991329-cooler-master-silencio-s400-matx-tower-w-sound-dampening-material
store_origin: NZ
region: New Zealand
---

# Reversible front door for flexible airflow Whisper-quiet 120mm PWM fans Steel panels with sound-dampening material 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

**Brand:** cooler master
**Price:** $1073
**Availability:** ❌ Out of Stock

## Summary

> 🔕 Silence Meets Performance — The Ultimate Quiet Case for the Modern Pro

## Quick Answers

- **What is this?** 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 by cooler master
- **How much does it cost?** $1073 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/141991329-cooler-master-silencio-s400-matx-tower-w-sound-dampening-material)

## Best For

- cooler master enthusiasts

## Why This Product

- Trusted cooler master brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Silent Powerhouse:** Experience near-silent operation with dual 120mm PWM fans and full sound-dampening panels that keep your workspace distraction-free.
- • **Adaptive Ventilation:** Removable top cover lets you switch effortlessly between maximum cooling and whisper-quiet silence—perfect for heavy rendering or focused audio work.
- • **Integrated Convenience:** Built-in SD card reader and sturdy headset jack on the I/O panel streamline your workflow without extra peripherals cluttering your desk.
- • **Versatile Front Access:** Reversible steel front door with mesh ventilation balances airflow and noise reduction, giving you control over your system’s environment.
- • **Robust & Practical Design:** Heavy-duty steel construction with smart cable management and modular drive bays ensures durability and easy customization for evolving setups.

## Overview

The Cooler Master Silencio S400 is a premium mATX tower designed for professionals who demand silent operation without sacrificing cooling efficiency. Featuring sound-dampening materials on all panels, reversible steel front door with mesh ventilation, and dual whisper-quiet 120mm PWM fans, it offers customizable airflow and noise control. Additional perks include a removable top cover for enhanced ventilation, integrated SD card reader, and a durable headset jack. Built with robust steel and thoughtful cable management, this case is ideal for audio engineers, content creators, and anyone seeking a quiet yet powerful PC build.

## 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.

Review: 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.
Review: almost perfect - 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 ;)

## Features

- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07STP8MYP |
| Best Sellers Rank | #1,780 in Computer Cases |
| Brand | Cooler Master |
| Color | Silencio S400 |
| Customer Reviews | 4.5 4.5 out of 5 stars (354) |
| Date First Available | June 10, 2019 |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 8.27 x 16.46 x 16.06 inches |
| Item Weight | 15.4 pounds |
| Item model number | MCS-S400-KN5N-S00 |
| Language | English, English, English, English |
| Manufacturer | Coolermaster |
| Number of USB 2.0 Ports | 2 |
| Number of USB 3.0 Ports | 2 |
| Product Dimensions | 8.27 x 16.46 x 16.06 inches |
| Series | S400 |

## Product Details

- **Brand:** Cooler Master
- **Case Type:** Mini-Tower
- **Color:** Silencio S400
- **Cooling Method:** Air
- **Fan Size:** 120 Millimeters
- **Item Weight:** 7 Kilograms
- **Material:** Alloy Steel
- **Model Name:** S400
- **Motherboard Compatability:** ATX
- **Power Supply Mounting Type:** Bottom Mount

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/41OEsutJB+L.jpg)
![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 - Image 2](https://m.media-amazon.com/images/I/41w1M+lRSRL.jpg)
![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 - Image 3](https://m.media-amazon.com/images/I/51AklCceTWL.jpg)
![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 - Image 4](https://m.media-amazon.com/images/I/51JLu-WXN1L.jpg)
![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 - Image 5](https://m.media-amazon.com/images/I/51QGib5bqOL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Can you slap a 240mm radiator in this hoe?**
A: Yes. You can in the front and up top. To fit a 240mm AIO up top, you need to remove ODD cage.

CM-PNguyen

**Q: Does this have any size restrictions to the components? ie, can i throw a full sized atx motherboard and 30cm double height video card in there?**
A: The case is an mATX case. It will not support a ATX motherboard. The GPU height would be fine, as long as the overall length is below 319mm.

CM-PNguyen

**Q: Does this come with both side panels (tempered glass and metal)?  if it only comes with one, what are the part numbers for both versions?**
A: Per Cooler Master's website, the model numbers for both versions are:

MCS-S400-KN5N-S00 (Steel), MCS-S400-KG5N-S00 (TG)

This listing is for the "...KN5N..." model, and it only comes with steel side panels. The tempered glass panel isn't included.

**Q: Can I put this case on its side if need be?**
A: It should be fine but since the side doesn't have any rubber feet, it might get scuffed up.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect case for AV work
*by J***R 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.

### ⭐⭐⭐⭐⭐ almost perfect
*by S***H on June 18, 2021*

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 ;)

### ⭐⭐⭐⭐⭐ Perfect case for a professional look and subdued noise
*by J***D on November 25, 2019*

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

## Frequently Bought Together

- 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
- AMD Ryzen 7 5700G 8-Core, 16-Thread Unlocked Desktop Processor with Radeon Graphics

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-18*