COSMOS II 25th anniversary edition overview

Cooler Master is a company well-known to all PC builders – their cases are among the most praised ones on the market. To celebrate 25 years of existence, this manufacturer decided to release a new revision of one of their most famous models – the Cosmos II.

This version bears the name of COSMOS II 25th Anniversary Edition and is already highly sought among the PC enthusiasts, and for a reason. It looks almost exactly like the popular 2012 model but now adds the much-desired glass panels on the sides. Let’s see what its main features are!

Interesting Features Added to an Old Iconic Aesthetics

Like we already mentioned, this PC case looks very similar to its predecessor, but still features some dissimilarities. Unlike the 2012 model, its feet and handles aren’t protected out of the box, while the frontal part looks almost identical to that of the 5-year old version. The biggest difference is, of course, the presence of the glass-made side panels, which have a tinted shade and are a little bit bent, giving the case a slightly menacing look (in a good way). In the top, there are three drive bays (5.25″) and two hot-swap ones (3.5″). The front panel also has audio connectors and the USB ports (4 x 2.0 and 2 x 3.0).

The interior of this chassis is divided into two compartments, and the bottom part is reserved for the hard-drive cages and the PSU. We liked the fact that there are many openings for the cable routing, and that there’s enough space for the biggest CPU coolers and graphics cards. As expected, the PSU bay comes lined with foam in order to reduce the vibrations, and above it are the necessary 10+1 slots.

image showing COSMOS II 25th anniversary edition with open side panel
Photo Credti:


  • Dimensions (mm): 344 x 665 x 704

  • Weight: 23Kg

  • Front Panel: 1 x microphone, 1 x headphone, 4 x USB 2.0, 2 x USB 3.0

  • Material: Aluminum, Steel, Plastic

  • Maximum graphics card length: 385mm

  • Fan Support: Front – 1 x 200mm, 1 x 120/140mm; Top – 120mm x 1, 200mm x 1, 140mm x 2, 120mm x 3; Rear – 1 x 140mm, 120mm x 1

  • Extras: 4-channel fan controller, Removable dust filters, cable ties, cable management bits, rails for liquid cooling, speaker, LED strip, two sets of keys, power extension cable, screws

Pros and Cons of 25th Anniversary COSMOS II


  • Timeless Cosmos design
  • Bent glass panels
  • Lot of space for the components
  • Six USB ports
  • Able to fit multi-GPU setups


  • Quite heavy
  • No eSATA connector like on 2012 model

Check out this amazing video made by HardwareCanucks via YouTube:


The original Cosmos II was a product of pure excellence, and its younger brother adds some flair to that. This is not obvious at first – the case looks quite similar to its predecessor, but features some subtle enhancements that make it something worth buying in 2017. The thing that we liked the most is undoubtedly the presence of the curved-glass side panels, which look absolutely fantastic. In our opinion, this thing is totally worth the money.

A tech enthusiast that just loves hardware. Always in the loop of the latest and greatest in PC, mobile & technology in general. My family and friends tech support guy :)


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