Product Showcase - Interior, the backside
You can see the big compartment here.
Two cages can hold two 3.5” drives or four 2.5” drives. It’s relatively easy to remove it.
The PSU bay can house a power supply of 230 mm long, which is a lot (usually, the units are 160-190 mm long).
There are foam pads to make it more stable.
As for the cable management, there’s about 90 mm of clearance. Let’s proceed to the building part of the review.