Is that this board; https://www.asus.com/au/Motherboards/MAXIMUS_VII_HERO/overview/
Refer to page 1-45 of the manual;
https://dlcdnets.asus.com/pub/ASUS/mb/LGA1150/MAXIMUS-VII-HERO/E9799_MAXIMUS_VII_HERO_V2_WEB.pdf
The F_Panel connectors are different to most motherboards, but it's there on the very bottom front corner of the board.
But NZXT have tried to be creative and use a USB type connector instead of the individual wires that most cases use. You'll need an adapter that's shown in the documentation (Called a breakout cable). The components list implies its shipped with the case, but this is NZXT to who knows..
Did you get that cable with the case?