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On top of the Tai Chi we see two muscular handles, that is the only way to haul up this big and heavy casing.
Again many holes for optimal ventilation. Your PC can breathe Obi-Wan...
We see similar stuff in the side doors, many holes and openings. There is a downside to that, noise originating from the PC can be heard more easily also.
At the rear of the front intake fan (which has a blue LED in it btw) there are three 3.5 internal bays, a suitable space for hard disks, that are properly cooled by the fan and easy to install.