Inside the SilverStone Fortress FT03-MINI
As previously explained, three of the four side panels come off the case by simply pulling them out. The “front” of the case is where the bay for the slim optical drive is located. If we follow this orientation, the motherboard tray is located to the left. The case supports one 3.5” and two 2.5” storage devices. As already mentioned, it supports video cards up to 10” (254 mm) long and CPU coolers up to 3.1” (78 mm) tall, and there are two expansion slots.
In Figure 8, you can see the case with its drive bays removed.