The R-3 Corona; Interior
The insides of the case are pretty bare as there isn’t a preinstalled Power supply.
From inside the extra fan space is more obvious. I wonder why they didn’t choose to fit a single 12cm fan instead of a single 80mm and the option for a second.
There is a very simple bracket, in the top right hand corner, in order for the hard drive to be screwed into. It can be easily removed from the case with the hard drive attached and then screwed back in using two screws on the top.
Finally, the case comes with the usual array of cables which are kept tied together with an elastic band to keep them tidy. The cables and fed through a gap in the front panel into the main chamber.