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Bitfenix Colossus Micro ATX Case Review

  1. Introduction
  2. Packaging and Specification
  3. External Impressions Part 1
  4. External Impressions Part 2
  5. Internal Impressions
  6. Installation Experience
  7. Conclusion
  8. View All

Starting off with the sidepanels:

The source of the LED light is on the front panel, the light expands through the left and right side panels.

The right panel is where the front panel USB 3.0 ports, Power/Activity indicator, audio ports and power/reset buttons are present.

The front panel’s LED takes power via the SATA power connector. The colour modes are red, blue green and breathing effects that switch colours after few seconds.

The front panel meshed areas, however, uses a thin sponge-like material as a choice of air filter material. I am not fond of this, especially when it collect a thick layer of dust and the only way to remove it is to un-clip the mesh from the inside.

With inverted form factor cases, most of the work is done towards the right sidepanel. Once you remove it, you first see the removable 2x 3.5” and 3x 2.5” mounting bracket.

Just like the case’s frame, the HDD mount is made of steel. The outer section allows you to install the SSD, where the inner section allows you to install 2x 3.5” mechanical drives.

The inner side of the front panel does not have any pre-installed fans but has mounting holes for series of combinations, including 1x 200/230mm fans. It seems strange that BitFenix didn’t mention this in their specifications. However due to the base mount for the power supply, its fan faces the front once it’s installed.

The top panel panels will need to be installed from the inside, and this is where you can start seeing certain restrictions due to limited space.

The 5.25” support is removable. You’ll need to remove it if you want to install 240mm radiators. You don’t need to remove the 5.25” bay if you plan to use the second fan mount, but the bay will be unusable. You’ll either have to stick with a single fan setup or ditch the plans to have a 5.25” drive.

Once the bay is removed, you’re getting a lot of space. However, you’ll need to install the front panel headers first and then the 240mm radiators. There would be some space constraint that would require you to install in a particular sequence.

You can either install fans or 3.5” mechanical HDDs on the base of the case.A size of 230mm is the largest fan you can install it with. You’ll need to use the heat shield should you decide to use the HDD mounts.


  1. Hoew the fuck have you mounted PSU in that case? How power cord is connected to it?

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