It looks like a molex cable to me which is just power. It will probably be daisy chained together with 2 other of the same connector that then goes to your PSU. The other parts could be connected to something. If possible I would switch it out with Sata power anyway. I don’t trust molex.
Huh, now that you say so it does look like a molex connector. I haven’t seen one of those in years. If it is then at worst a few case fans stopped working. I can’t say I’ve ever seen anything important be attached to molex?
Lol yeah. It’s just weird where it’s coming from. That’s not like an old aio that has a USB to molex for power or something is it?