Case itself.  Plain and simple. 
Power button, screen and front door.

Remote, manual, cables, screws etc.

Opening case

Unscrew top, rise back no more
than 2" and slide it back.

Here is the reason.

Inside view

There is a seal under cover

Cage for three hard drives

Quiet fan keeps hard drives cool

Two 80mm, quiet fans in S16V(T)
(Two 60mm, quiet fans in S14V)

Cables for front panel. Connect them all. 
If you don't connect molex connector, red light will not change to blue after power "ON"

Preparing hard drives and DVD.. 
Remove DVD cage and assembly DVD first. 
Set it up perfectly and install front bezel.  When DVD is assembled perfectly, then install motherboard and PS.

I strongly recommend to remove HD cage temporally. 
It's easier to hide wires and assembly long cards. (Maximum 9.5")

Cage sits on 1" supports.  You can use this space to hide some wires.

So does motherboard.  There is a lot of space for wires under motherboard

Space under motherboard

Black cables are hidden under motherboard.  I put both SATA cables under MB as well.

Behind the front door.

Space for unused power cables in S16.  There is a vent so let air circulate.

Keep cables away from front door.  Don't block it.  You may have a problem to open it

Space for power cables in S14V

Keep in mind that maximum length of PCI board is 9.5".  Here is a  HiPix card.  To install this card I HAD TO remove HD cage.

Don't use memory with high radiators in S14V!  Space under DVD drive is limited.  In this HTPC space between memory and drive is 0.25" only.

Two hard drives in this case.  You can install up to four hard drives total. (or even five with additional bracket).  SATA wires under HD cage.

When assembling hard drive do it carefully.  Rubber on the screws is soft and can be damaged.

Damaged screw .  Be careful.

Optional in SxxV series IR221 module installation.

IR221 wiring diagram for SxxT models

IR switch must be set to "Philips" position.

VF210 wiring diagram for SxxV models