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Cooler Master Silencio S400 Micro ATX Sound-Dampened Tower

(£84.00 inc VAT)
Short description:
MicroATX Case, Supports ATX PSU
2 x Fans Included

Silencio S400 - Silence Has A Sequel


  • Silencio Design
  • Silencio Technology
  • Sound Dampening Material
  • Seamless Tempered Glass or Sound-Dampened Steel
  • Top & Front Ventilation
  • Reversible Steel Door

Dimensions W D H
210mm 418mm 408mm
Weight 7.03kg
Front Fan Supports 2 x 120/140mm fans
Includes 1x 120mm fan
Rear Fan Supports 1 x 120mm Fan
Includes 1 x 120mm Fan
Top Fan Supports 1 x 120/140mm fan
With ODD cage removed, supports 2 x 120/140mm fans
Radiator Support Front - Up to 240mm (280mm if ODD cage removed)
Top - Up to 240mm (requires removal of ODD cage)
Rear - Up to 120mm
5"1/4 Bays 1 x 5"1/4 
3"1/2 Bays 4 x 3"1/2 (can support 2"1/2 also)
2"1/2 Bays 4 x 2"1/2
Motherboard Micro-ATX, Mini ITX
Power Supply ATX Supported, up to 180mm Length
Material Body: Steel w/ soun dampening
Front: Plastic
Side Window: Tempered Glass
CPU Cooler Max Height 166mm
Window Full Size Tempered Glass
Graphics Support Max 319mm Length
Vertical Graphics No
Expansion Slots 4 Horizontal
Hubs -
Connectors 2 x USB 3.2 Gen 1 (formerly USB 3.0)
1 x 3.5mm Headset Jack (Audio+Mic)
1 x SD card reader

Silencio Design

The Silencio’s minimalistic design cloaks its complexity. Design elements fine-tuned in form and function result in minimized noise and efficiently maintained system temperatures.

Silencio Technology

Behind the outer panels are pieces of meticulously placed sound dampening material. The development of the Silencio was driven by Sorama’s Cam64—this allowed for the entire sound spectrum to be visually analyzed by source, resonance pattern, and frequency.

With the identification of peaks within certain frequency ranges, fine-tuning the Silencio for the dispersion of resonance was made possible, reducing the prominence of noise generated by system components. Every detail in design optimized the Silencio for thermal efficiency and silence, from the type of material used to its placement.

Versatile HDD Cage

The HDD cage is (re)movable. The cage can be shifted forward to make room for a longer PSU, backwards for additional radiator space, or completely removed if HDD storage is not needed.

Reversible Steel Door

The steel front door features a reversible mounting system, capable of opening in either direction. To prevent vibrations, a softer, thicker material spans the steel structure in conjunction with a hinge system of magnets and rubber stompers.

Depth / Length:

New features

Cooler Master


Case Form Factor:
MicroATX / uATX
Graphics Card Support:
Case Window:
Tempered Glass Side
Case Lighting:
Case Slim Optical Bay:
Case 5"1/4 Bays:
Case 3"1/2 Bays:
Case Dedicated 2"1/2 Bays:

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