To access the interior, simply remove the two thumbscrews holding each panel in place. As mentioned before, Aerocool has painted some of the areas within the chassis red—mainly the motherboard tray. Certain plastic elements are also red to go with the overall theme. A large opening in the motherboard tray should give way to the underside of the CPU area, while numerous openings covered up by rubber grommets around the motherboard tray should allow for easy cable routing. Loads of hooks for cable ties and roughly 30 mm worth of space behind the motherboard tray also make cable routing easier.
The bottom half of the front area is taken up by a large hard-drive cage that can hold seven 2.5" or 3.5" drives in red trays. These trays are made of plastic and have a solid front. Above that are the five external 5.25" bays with tool-less locks out of plastic. While this feature could prove useful, trays made out of nothing but plastic tend to be rather flimsy. It will be interesting to see how these fare.
The PSU bay in the rear utilizes four rubber mounts to support your power supply and stop any vibrations from passing on to the frame of the chassis. Above that are the ten expansion slots, each protected by an individual red metal-mesh cover that is held in place by a plastic locking mechanism. These locks are made of plastic with a metal pin running down the full length of the expansion slots, and do hold quite well. The very top of the rear holds the 140 mm fan with red blades and Aerocool logo. It comes with a combo cable featuring both 3-pin and Molex connectivity, which allows you to pick between the two based on which method suits your system best.
The ceiling holds an identical 200 mm fan, again with red blades and an identical combo cable. This one blows air out the top of the chassis. Take a closer look at the mounting holes present in the top of the chassis: You may be able to go with a single 140 mm or two 120 mm units instead of the pre-installed fan. The 120 mm mounting holes also seem to be close enough together to allow for a 240 mm radiator there.
There are quite a few cables within the GT-S Black Edition. All of them are unfortunately colorful, but it would have been nice to see all-black sleeving, for example. While the case connectivity and I/O leads are of the default variety, Aerocool takes a weird approach to connecting fans to the fan controller—there is a single 3-pin connector with the "FAN" label and a single Molex connector is attached to it. There is a Molex pass-through cable as well, but I have no idea where it goes. I would assume that this cable powers the fan controller. The manual is of no help either. I simply connected the 200 mm fan in the front to the 3-pin plug, daisy chaining the rest of the fans to the Molex plug. Your best guess is as good as mine. This fan controller can handle up to 25W in total, which is not a lot.