To gain access to the interior, simply unscrew the four large golden, aluminum caps holding each side panel in place. Once removed, quite an elaborate internal design is revealed. Even though the case essentially consists of simple plates, In Win has shaped them in such a way that they end up forming a chassis with a few nice extras. HDD trays with hot-swap bays, each of featuring individual cables so that you do not need to provide SATA cables, for example. Both major, blue aluminum plates act as structural support and enable all these features, while the white panels are mainly used to make up the case itself.
Taking a closer look at the front, there are three 3.5" hard-drive bays embedded within the H-Frame. Each with its own individual aluminum tray held in place by spring-loaded thumbscrews. Above that is the aforementioned 120 mm frame for the fan, which may be pulled out of the chassis in a similar manner, while the very top holds an angled 5.25" bay, which is only visible from the front.
A fourth hard-drive bay, intended purely for 2.5" drives, but also with hot-swap connectivity, has been placed in the interior of the case. It is held in place by a single spring-loaded thumbscrew.
In the rear, the PSU bay is nothing out of the ordinary. Since there is no real space to place anti-vibration measures, In Win has included two foam strips to be applied to the power supply. Above that are the seven expansion slots, each with its own slim thumbscrew. In the very top, you will find another fan frame, once more held in place by a pair of spring-loaded thumbscrews.
A small oversight is the, in my opinion, use of white and red cables to connect power and LEDs to the motherboard. It would have been cool if In Win had sleeved these black as well, as all other cables are of that color. Each individual hard-drive bay comes with their own pair of cables - one for SATA power and one for data. A clip on the latter ensures that the plug does not detach on its own.
Even though all areas of the chassis are open, In Win has placed a silver mesh inside the ceiling of the chassis. While this goes against the overall design a bit, it is a protective measure should you happen to drop something onto the chassis. It would be a shame if a dropped pen or screw damages or shorts out internal components.