On the right-hand side there is only one opening panel that allows you to reach for the fastening screws for the 5.25” devices:

As we have already mentioned before, these devices are fastened with screws topped with knurled heads:

As a result you don’t really need a screwdriver. As for the preinstalled 5.25” devices there are only a special drawer for small components and the HDD chassis, similar to the one used in Armor case, but designed from solid aluminum:

The fastening holes for the hard drives are oval-shaped:

And you can level-out the drives vertically and horizontally relative to the front panel: