Cooler Master Silencio 652S Tower Case

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Cooler Master Silencio 652S Tower Case

March 30, 2015 by Lawrence Lee

Cooler Master Silencio 652S
ATX Tower Case

Cooler Master is best known for their enthusiast class cases but they have a history of producing silent-oriented enclosures as well. Over the years we've examined a few offerings from their Sileo and Silencio series, which have had a more refined low-noise oriented design compared to their other offerings. Quiet cases usually trade some airflow for greater noise reduction, but with a well-designed chassis, it's certainly possible to deliver both, especially for a manufacturer with this much experience.

The box.

The Silencio 652S.

The Silencio 652S is the most upscale quiet case from Cooler Master so far. Its appearance jibes with most SPCR enthusiasts: An understated boxy tower with a steel/plastic construction and a matte black finish. However, hidden behind solid panels are numerous fan options, including a massive 200 mm placement on the side panel that would be perfect for cooling down a graphics card, and removable dust filters service every location. A door at the front helps block out noise from intake fans while ample slits running down the sides of the bezel look good for fresh air intake.

On the inside, the side panels are lined with foam, and three of the fan vents are occupied by Cooler Master Silencio FP 120 fans, also billed as silent. For enthusiasts, radiators up to 240 mm can be installed, as can CPU heatsinks up to 16.8 cm in height and video cards up to 42.3 cm in length. Drive support is strong with a maximum of 10 x 2.5-inch drives or 9 x 3.5-inch drives (or a combination of both). Along with front USB 3.0, Cooler Master throws in a rare addition in the form of an SD card reader.


Included in the accessory box is a set of 5.25 to 3.5-inch drive adapter brackets, zip-ties, a short assembly guide, a PC speaker, anti-vibration pads for mounting 2.5-inch drives, and a mysterious long standoff for the hard drive cage that gets no mention in the manual. All the screws and standoffs are jammed together in a small bag even though though there 10 different types of screws inside meant for different applications; it would have been nice to have these sorted and separated.

Specifications: Cooler Master Silencio 652S
(from the product web page)
Model Number SIL-652-KKN2
Available Color Midnight Black
Materials Polymer, Steel
Dimensions 220 x 507 x 508.6 mm / 8.7 x 20 x 20 inch (W x H x D)
Net Weight 10.4 kg / 22.9 lbs
M/B Type microATX, ATX
5.25" Drive Bays 3 (exposed)
3.5" Drive Bays 9 (hidden; 7 in the HDD/SSD combo cage, 1 at the bottom, 1 in the ODD cage by adapter)
2.5" Drive Bays 10 (hidden; 7 in the HDD/SSD combo cages, 1 under the ODD cage, 1 behind the M/B tray,1 at the bottom)
I/O Panel USB 3.0 x 2, USB 2.0 x 2, Audio x 1 (supports AC97 / HD Audio), Mic x 1, SD card reader (Class 10) x 1
Expansion Slots 7+1
Cooling System Top: 180/200mm fan x 1, or 120/140mm fan x 2 (optional)
Front: 120mm Silencio FP 120 fan x 2 (installed; 11±1 dBA, 1200±200 RPM)
Rear: 120mm Silencio FP 120 fan x 1 (installed; 11±1 dBA, 1200±200 RPM)
Side: 180/200mm fan x 1 (optional)
Bottom: 120/180mm fan x 1 (optional)
HDD cage: 120mm fan x 1 (optional)
Power Supply Type Standard ATX PS2
Maximum Compatibility VGA card length: 423 mm / 16.6 inch
CPU cooler height: 168mm / 6.6 inch

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