Starting at the bottom there are rubber struts for supporting the bottom of the PSU. Underneath the perforated mesh a filter is positioned that can be easily removed for cleaning.
The mounting area for the PSU featuring rubber mounts
Further up, there is a tool-less mechanism for fixing expansion cards into the Colossus. All you have to do to install a device here is move the lever back, remove the expansion plate, and move the lever into the lock position.
A total of 8 slots, presenting many options and of course you won't need to get the screwdriver out which is always a bonus.
Tool-less expansion mechanism
Taking a look at the rear of the case and the top, there is a space for the 140mm fan to be installed, again - outlets for the water-cooling option and the huge 230mm fan at the very top. This fan is 3-pin so it will need to be installed onto a fan header on the motherboard.
A closer look at the cooling inside the Colossus. The huge 230mm fan
Moving across the front side of case internals, we have another tool-less design mechanism for the 5.25" bays. This is by way of a button that is pressed when the drive is slid into the space. A nice impression of the BitFenix is present on each of the buttons. BitFenix have certainly styled the Colossus very well, these little details show attention to detail. Something that some companies sadly miss out.
Tool-less mechanism for the installation of optical drives
Lastly we come to the HDD rack. There are a total of 7 x 3.5" plastic frames here. These frames are the only element of the Colossus that concern me a little, when examining one of the frames I actually broke it (you can see this on the video review on youtube). Bitfenix should really have made the plastic on these frames a bit more sturdy in order for them to 1 - be stronger and 2 - fit inside the HDD rack better as they currently without anything installed inside fall into the next bay if light pressure is applied.
Behind this HDD cage is another 230mm fan. This fan acts as an intake and will blow against the HDD area, across the motherboard.
3.5" frame for attaching HDD inside
