The Corsair Obsidian 450D Window is a computer housing that gives your system a look. The housing has a window in the side panel of the housing. The Midi Tower housing is suitable for ATX, Micro-ATX and Mini-ITX motherboards and has space for multiple video cards up to a length of 430 mm. Side panels, SSDs, expansion slots and optical drives are all tool-less to confirm. So you do not need tools to install these parts. The Corsair Obsidian 450D has 3 fans of 120 and 140 mm, but has room for no less than 8 fans with a maximum size of 140 mm. There is also room for 5 hard disks and 2 optical drives.