It was a Silverstone ATX to SFX adapter like $12 on Amazon I think.
I think that is the problem with these cards. They probably had to release RTX cards for there to be RTX games made.
Yeah, I will likely only stick to the xx70 graphics cards. No sense in 4K gaming when I currently like my 21.5" and probably never want to go above 27". Though, my overclocked 970 could barely run my modded Skyrim at 45+ FPS.