Product gallery

Once we look at the right side (or rear) of the motherboard tray (behind the motherboard) we see cable routing nirvana.  There is enough space for cable routing, the chassis has many routing points with velcro tie-wraps and they are all very large and located at every key location, optimized for ATX motherboards.

You can see guiding plates for hiding cables, secured with velcro straps. The idea is to secure cables in it.

Here you have roughly 2cm of spacing for cables (depending if you route bypassing the shielding). However the side panel has an indentation bringing in a bit more spacing, so that's okay and decent enough. Also, there are plenty of grommet holes and space to tuck away the cable spaghetti. 
 

There is one HDD bay with two trays available. You simply slide it in and secure it with screws. There is no rubber resonating protection though, so the HDD mounting system is not the best, also you can mount only two HDDs. 

The SSDs simple is secured with screws in the trays you can see in the photo above, located at the rear side of the motherboard tray.