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Cooler Master COSMOS II 25th Anniversary Edition

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by  COOLER MASTER USA    |    PCN#  3FG914    |    MFG#  RC-1200-KKN2    |   
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Product Highlights:
  • Full
  • tower
  • Black, Silver
  • Steel, Aluminum
Product Condition: New and Factory Fresh
Shipping Weight: 60 lbs.
List Price: $349.99
Our Price: $303.64
You Save: $46.35 (13%)
  Protection Plan  Details
2-Year   $40.99
3-Year   $53.99

Cooler Master COSMOS II 25th Anniversary Edition

Curved Tempered Glass

Innovative dual curved dark glass

Ever since the launch of the original Cosmos II, fans have been asking, or making by themselves, for a windowed side panel.
Cooler Master has accepted the challenge and to celebrate the 25th anniversary we have released this special edition.

For this special edition we even take it a step further:
Both sides come with beautifully crafted curved tempered side panels that blend seamlessly with the sophisticated contours of the case.

A Legacy of Aluminum

The first aluminum chassis was made by Cooler Master under the ATCS series. This 25th anniversary edition of Cosmos II is paying its tribute by changing the M/B Tray & Partition Plate to aluminum. Plus it adds a touch of premium.

A Touch of Premium

This special edition features an updated design with two distinctive brushed aluminum handles and a soft brushed aluminum sheen on the front and top panels. The top slide panel covers the Advanced Control Panel and hidden behind the front slide panel lies a stack of hot-swappable drive bays.

Blue LED Ambient Lighthing

When thinking about the cosmos, the color blue will spring to mind. Blue is also the color first used in our chassis. This chassis will bring back that feeling and it will emphasize the beauty of your components with a discrete blue glow from the front LED fan and strip displayed through the tinted tempered glass panels.

Streamlined Airflow

Individual cooling zones make sure you have an improved thermal management and a streamlined airflow. With a 200mm blue LED fan in the front and a 120mm fan in the back you are already certain from a quiet cooling performance.

General Information

ManufacturerCooler Master Co., Ltd

Manufacturer Part NumberRC-1200-KKN2

Manufacturer Website Address

Brand NameCooler Master

Product LineCosmos

Product SeriesII

Product ModelRC-1200-KKN2

Product NameCOSMOS II 25th Anniversary Edition

Product TypeComputer Case

Technical Information

Technical Information

Motherboard SupportedMicro ATX, ATX, EATX, XL-ATX, SSI CEB, SSI EEB
Number of Fans Supported8

Number of Fans Installed3

Installed Fan Size4.72", 5.51", 7.87"


Number of External 5.25" Bays3

Number of External 3.5" Bays2

Number of Internal 3.5" Bays11

Number of Total Expansion Bays16

I/O Expansions

Number of Total Expansion Slots11


Total Number of USB Ports6

Total Number of Audio In Ports1

Total Number of Audio Out Ports1

Power Description

Power Supply InstalledYes

Number of Power Supplies Supported1

Number of Power Supplies InstalledNo

Physical Characteristics

ColorBlack, Silver
MaterialSteel, Aluminum

Form FactorFull-tower




Weight (Approximate)50.71 lb