120mm rear exhaust fan
Next to the PCI slots there is a 120mm rear exhaust cooling fan. Sadly, the cables connected to this fan are not braided and are therefore yellow, red and black. This can make it hard to conceal cables and keep things tidy. As mentioned previously, we can also install dual 120/140mm fans at the top.
Single 5.25” and 2.5” bays
At the front of Steam Castle there is a single 5.25” and 2.5” drive bay. Both of these cages require a standard set of screws and do not have any tool-free mechanisms attached.
Primary storage cage and 200mm cooling fan
Beside the motherboard and PSU cage there is another cage which used for the primary source of storage. This cage has two trays which can accommodate 3.5” and 2.5” drives.
Behind the storage cage we have a large, 200mm intake cooling fan which is responsible for bringing cool air into the chassis.