Cooler Master Silencio S400

Mini Tower PC case with advanced silence technology

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Cooler Master's Silencio S400 is a standard mini-tower case with a clean, simple design and advanced noise management. Its walls are lined with insulating foam to effectively reduce the noise of your setup.

Mini Tower PC case with advanced silence technology

* Lowest selling price on LDLC during the last 30 days.
Overview

Silence and sobriety

The Silencio S400 from Cooler Master is a standard mini-tower case with a sober and refined design and advanced noise management. Its walls filled with insulating foam effectively reduce the noise pollution of your configuration whether it is from a micro-ATX or mini-ITX motherboard. With two 120mm fans installed and watercooling compatibility, this case is ready to welcome your equipment in the best conditions.

Silence is golden

The development of the Silencion S400 has been focused on noise reduction, so its operation is very quiet, thanks to the use of anti-noise foam to line the inside of the case and a resonance that is reduced to a minimum. Even the 2 fans that come as standard have been given special treatment and are equipped with rubber pads that greatly limit their noise volume.

A complete case

The Silencio S400 hides its game well. It can accommodate motherboards in micro-ATX or mini-ITX format in order to build a configuration powerful enough for gaming. The case can accommodate a 319 mm graphics card and the processor is cooled by a ventirad with a maximum height of 166 mm. There are also 4 PCI slots for expansion cards for your future PC. On the storage side, you will be able to install one 5.25", four 3.5" and four 2.5" disks. The front door is reversible to adapt to the organisation of your environment.

Three dust filters are also available to keep the heart of your machine clean, and the HDD cage is removable. It can also be moved to make room for a larger power supply or a larger heatsink in the case of watercooling for example.

Keep your components cool

The Silencio S400 also relies on good cooling quality and is equipped with 2 x 120mm fans (1 front and 1 rear). To this you can add 1 120/140 mm slot at the front and 1 other (or even 2 without the 5.25" case) 120/140 mm slot at the top to complete your configuration.

Compatible with a watercooling system, the S400 can house a radiator up to 280mm in size and thus provide superior cooling to your entire setup.

Main features:

  • Mini tower case
  • Micro-ATX / Mini-ATX motherboard compatible
  • 4 expansion slots
  • Interior of the case lined with anti-noisecoating
  • 2 x 120mm fans supplied with rubber pads for quiet operation
  • Up to 3 additional 120/140mm fans can be installed (front and top)
  • Watercooling compatible
  • Reversible front door
  • Removable and relocatable HDD bay
  • 2 x USB 2.0 and front microphone/headset + SD card reader
  • Graphics card up to 319mm long can be installed
Specifications
Select your criteria

General information

Product name

Cooler Master Silencio S400

Brand

Cooler Master Ltd

Model

MCS-S400-KN5N-S00

Main characteristics

Graphic card max. length

319 mm

Max height CPU fan

167 mm

Power supply max. length

325 mm

Power format

ATX/EPS

Case format

Mini tower

Use

Gamer
Office

Material

Plastic
Steel/Aluminum

Motherboard format

Micro ATX
Mini ITX

Power supply supplied

No

Design

Screwless fixing system

No

Case color

Black

Front color

Black

Dust filters

3

Integrated display

No

Glass

No

LED RGB

No

ARGB LED

No

Water cooling compatible

Yes

Motherboard connector location

Standard connectors (on the motherboard)

Expansion slots

Number of PCI slots

4

Low profile

No

Number of visible 3.5" slots

0

Number of invisible 3.5" slots

4

Number of 2.5" slots

4

Number of 2.5"/3.5" slots

0

Number of visible 5.25" slots

1

Number of Slot-in slim 5.25'' slots

0

Number of Slim 5.25'' slots

0

Front connectivity

Location of expansion ports

Front

Connector(s) available

2 X USB 3.0
Microphone (3.5mm Jack Female)
Headphone (3.5mm Jack Female)

Cooling

Number of rear fan(s) slots

1 X 120mm

Quantity of rear fan(s) supplied

1

Number of front fan(s) slots

2 X 120 or 140mm

Quantity of front fan(s) supplied

1

Number of above fan(s) slots

2 X 120 or 140mm

Quantity of above fan(s) supplied

0

Water cooling

AIO radiator compatibility

280mm radiator
240mm radiator
140mm radiator
120mm radiator

Front AIO slot(s)

280mm radiator
240mm radiator
140mm radiator
120mm radiator

Above AIO slot(s)

240mm radiator
120mm radiator

Rear AIO slot(s)

120mm radiator

Physical characteristics

Width

210 mm

Height

408 mm

Depth

418 mm

Warranties

Commercial warranty

Seller 3 years

Legal warranty

See terms & conditions

Product referenced on 30 Jul 2019

Customer reviews
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    4 reviews
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    2 reviews
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  • by EricD
    Posted on 4 Dec 2023
    Product bought from LDLC on 24 Nov 2023
    Number of reviews: 3 Average rating: 10

    Silencer

    I bought this box because I needed a compact box with an internal player/writer to put in a niche
    in a multimedia cabinet
    Mounted with an I5 12400F ,pure rock 2 black, and ASUS RTX 4060 , the box is silent with temperatures more than
    correct temperatures in games (CG and CPU at 60 degrees max).
    for this purpose.

    Review automatically translated
  • by MatthieuR
    Posted on 26 Oct 2023
    Product bought from LDLC on 27 Sep 2023
    Number of reviews: 1 Average rating: 10

    Top

    I hadn't bought a camera for 10 years. It's nothing like what I've had in the past. Great box, well laid out.
    The top plate is well magnetised. My only doubt is the relative fragility of the top sockets (jack and usb). To be seen over time

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  • by Jean-Loup M
    Posted on 3 Sep 2023
    Product bought from LDLC on 5 Aug 2023
    Number of reviews: 2 Average rating: 8

    good case, but fans need changing

    Good case overall, no weaknesses to be found.
    I chose this case because it's virtually noiseless, but the two fans supplied with it aren't very quiet, which is a shame. So I replaced them with two shadow wings from bequiet! Now it's really inaudible... except when the CG starts humming ^^.

    The power supply dust filter is very basic, and could do with a little improvement too.
    But in the end I don't regret my purchase, I love the sober and compact look.

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  • by Olivier R
    Posted on 19 May 2023
    Product bought from LDLC on 29 Nov 2022
    Number of reviews: 1 Average rating: 8

    Compact and quiet.

    Rather compact case, with a sober and elegant design. Ideal for a quiet, unobtrusive PC that can accommodate a powerful system. It would be perfect with a switch with a little more travel to eliminate any risk of unintentional pressing.

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  • by Morgan F
    Posted on 8 Dec 2021
    Product bought from LDLC on 27 Aug 2020
    Number of reviews: 1 Average rating: 5

    fragile usb ports ?

    I was initially happy with this box, but I changed my mind after a few months of use, as the 2 front USB ports no longer work without having been overused or forced...

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