Product Showcase - Interior

And at the backside, there is a lower compartment holding the PSU, an HDD bay, and some snazzy cable routing features. The first thing you'll notice is that you'll stumble into a door at the rear motherboard tray side. It cleaning up cable routing, but also hides cables from being visible through the right-side mesh in the panel.

 
The photo turned out a bit too dark, but once you open the door/cover you'll see some pretty dandy cable routing features and storage options. To the lower right, the PSU compartment, you can mount three SSDs (the chassis can hold four in tiotal0  and you will also find another two mounts for HDDs down below in the cage.

At the bottom you can mount the power supply, really any length will fit. There's a handy retention clip here as well. The rest of the space can be used for cable management. You get a good 20cm before you bump into the HDD (which can be repositioned or removed).

There's plenty of space for cable routing TBH, but the most narrow spot I could find is showing just over 2.5cm of clearance, that's plenty. There's also a nice gutter to lead the cables though as well as velcro ties to manage that routing job nicely. 

Included is a small fan hub, you'll notice there are four additional connectors left that you can make use of, you can hook this hub into a motherboard fan header for RPM control.