Since the cat is out of the bag, let me post some pictures with bad lighting and without heatsink system as a place holder.
Few key details from these pictures:
1: 2nd gen H5 has three expansion card slot. One full height single slot, one half height single slot(no riser needed), one dual slot for the video card.
2: Passive Video card fanless heatsink system is facing upwards.This is important.
3: Pivot Door