A Closer Look - Inside
Before we dive into the interior, it seems like the chassis we received was mistreated a bit. As you can see in the image above it damaged in multiple areas while the panel itself had quite a few scratches. My guess is, that it was forced unto the chassis or some sort of pressure was exerted in the side panel at the factory. Two signs point to this Mr. Watson: the perfectly fine outer packaging which shows no signs of bad handling and the fact that the one, broken off, corner of the window was found within the case itself.
To gain access to the insides, simply remove the pair of thumb screws holding each panel in place. As is the case with the exterior, Thermaltake has also painted the interior in black. There are multiple openings in the motherboard tray to route cables through - each covered by rubber grommets. A large one allows you to access the CPU cooler backplate without having to disassemble the entire system.
There is very little space behind the motherboard tray, with 1 cm. Luckily, there is another 1 cm available because of the extrusion of the side panel.
Just like in the Chaser, the Overseer packs individual trays for up to five hard drives. Unlike the ones in the Chaser, these are simpler as they lack the locking mechanism. Above that is the external 3.5 inch bay and the three 5.25 inch ones. These are equipped with three screwless locks, similar to those found on other modern cases. These snap into place automatically and should work quite well.
In the rear the PSU bay is noticeably different than other Thermaltake cases. Finally, the company has done away with the honestly - and I say this in the most loving and positive way - incredibly annoying support bar, which one was forced to remove to install the power supply. Above that are the eight motherboard expansion slots, with individual covers which are held in place by black thumb screws. The 120 mm exhaust fan is of that special shape which tends to be quieter than traditional OEM variants.
You may also install an additional 120 or 140 mm unit in the floor of the Overseer, while there is already a single 200 mm unit in the ceiling, with the possibility to add another one next to it. Due to the shape of these, a radiator will not fit here so you are left to use air cooling within this chassis.
Before we start with the assembly process, let us take a quick look at the cables. All of them are black to go with the rest of the chassis. The case cables are nothing out of the ordinary, with the exception of the SATA power plug for the HDD dock, as it utilizes a Molex connector. Thermaltake has also chosen to use an internal 20-pin for the USB 3.0 connectivity, thus I would have liked to see an adapter to attach this to the USB 2.0 headers as part of the contents.