GPU power cable question

I just built my first system in a long time. I have a EVGA 1070 GTX that has one 8 pin connection. I also have a EVGA Supernova G3 PSU. I used the supplied PSU labeled "VGA" 8 (6+2) cable to power my card. Is this correct?

Its been a long time since I built a system, like back when IDE was still common place so I just want to confirm.

Also have a question about my front IO lights, i have a Asus Z270F and was wondering if I put the cables in correctly? like 90 percent sure i did but I was a bit confused on the orientation and labeling

Heres a picture: