Cooler Master Cosmos II Ultra Tower Review

When Cooler Master released the Cosmos case a few years ago it was truly something new and revolutionary.  They followed it up with the Cosmos S, which gave it a more streamlined look and took away the front door.  Our own staff member Colin Dean still uses that case to this day.  Back in 2011 at CES we saw a prototype of the new Cosmos that Cooler Master was going to release later in the year.  We were excited, but we had no clue when it was going to be released.  Right before CES this year Cooler Master announced the Cosmos II.  A massive case with support for up to 13 hard drives, 5 included fans with support for up to 10 fans, 2 hot swap hard drive bays, and it can fit motherboards up to XL-ATX.  Read on as we check this beast out!

Special thanks to Cooler Master for providing us with the Cosmos II Ultra Tower to review!

– Stylish and streamlined race-car inspired design
– Brushed aluminum and steel for strength and elegance
– Airflow Optimized Design
– Supports up to 10 fans and 13 HDDs (2 from X-dock)
– Supports 4 Way SLI/CF
– Supports XL-ATX / SSI CEB / SSI EEB boards
– Advanced Control Panel includes 4 channel fan speed control
– Rich I/O support: USB 3.0 x 2, USB 2.0 x 4, e-SATA x 1, Audio In and Out


Model RC-1200-KKN1
Available Color Midnight Black
Material Exterior: Aluminum, Mesh, Synthetics;
Interior: Steel-Alloy, Synthetics, Rubber
Dimension (W / H / D) 344 x 704 x 664 mm / 13.5 x 27.7 x 26.1 inch
Weight 22kg / 48.5 lb
5.25″ Drive Bay 3
3.5″ Drive Bay 13 (2 from X-docking with key locks, 5 HDDs in the Middle cage, 6 HDDs in the bottom cage)
2.5″/3.5″ – SATA HDD Drive Bay 11 (converted from 3.5″ cages)
I/O Panel USB 3.0 x 2, USB 2.0 x 4, e-SATA x 1, Audio In and Out
Expansion Slots 10+1
Cooling System Front: 200mm LED fan x 1, 700 RPM, 19 dBA(converted from 120/140mm x 1)

Top: 120mm black fan x 1, 1200 RPM, 17 dBA
(optional: 200mm fan x 1 / 140mm fan x 2 / 120mm fan x 3)

Rear: 140mm fan x 1, 1200 RPM, 19 dBA

Side: 120mm fan x 2 (optional)

HDD: Mid.HDD: 120x25mm fan x 1 (optional); Bottom HDD: 120mm fan x 2, 1200 RPM, 17 dBA

Power Supply ATX PS2 / EPS 12V (optional)
Warranty 2 years
UPC Code 884102014857

The Cosmos II comes in a very large box.  I barely was able to fit the box in my car when I went to pick it up so make sure you keep that in mind.  The box has a large image of the case on the front and on the back it goes into detail about some of the features of the case.

Cooler Master Cosmos II Ultra Tower Cooler Master Cosmos II Ultra Tower

To give you a good idea how the case comes and a brief overview check out the video below.

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