The Ultra Tower

COSMOS II
25th Anniversary Edition

Awards and Reviews

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.
Aluminum Motherboard Tray with black rubber grommets
Aluminum Partition Plate with black rubber grommets
Sturdy Steel Frame

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.
  • 1. Solid brushed aluminum handles
  • 2. Solid brushed aluminum covered top
  • 3. Solid brushed aluminum front panel

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.
Specifications
Product Name COSMOS II 25th Anniversary Edition
Model Number RC-1200-KKN2
Available Color Silver / Black
Materials Appearance Aluminum, Mesh, Plastic
Body Steel, Aluminum
Side panel Glass
Dimensions (LxWxH) 344 x 704 x 664mm
Motherboard Support Micro-ATX, ATX, E-ATX, XL-ATX, SSI CEB, SSI EEB
Expansion Slots 10+1
Drive Bays 5.25" 3
3.5" HDD 13 (2 from X-dock with key locks, 5 HDDs in the middle cage, 6 HDDs in the bottom cage)
2.5" SSD 11 (converted from 3.5" cages)
I/O Panel USB 3.0 x 2, USB 2.0 x 4, Audio In / Out
Fan Support Top 120mm fan x 1 installed (optional: 200mm fan x1 / 140mm fan x 2 / 120mm fan x3
Front 200mm LED fan x 1 installed (optional 120/140mm fan x 1)
Rear 140mm fan x 1 installed (optional: 120mm fan x 1)
HDD 120mm fan x 3 (2 fans for bottom HDD / 1 fan for middle HDD (optional))
Liquid Cooling Support Top 240mm/280mm radiator (max 320mm radiator)
Clearance CPU Cooler 190mm
GPU 190mm-385mm
Power Supply Support ATX PS2/EPS 12V (optional)
EAN Code 4719512057445
UPC Code 884102031076
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