Looks to me like an
In-Win 909.
a) Triple rear fan mounts (look closely, there are fans
behind the PCIe slots - hardly anyone but In-Win does that)
b) Tempered glass side panel w/small cut-out along the bottom half in the lower front corner
c)
It's freaking huge. As is the 909.
d) "Front" I/O is along the cut-out on the side.
e) RGB lighting along said I/O.
There's more I can say, but I think I've made my case (pun not intended, but I'll leave it in).