Yes, there is an EPS adapter available.
Looking for a PCI-E adapter suitable for an 8-pin EPS fan. It seems the cables are already in progress, so you might need a different solution.
It wasn't something I was familiar with. I had to create it myself.
I created it using my processing capabilities. O.o
Altium CircuitMaker, JLCPCB, and select AliExpress components—proceed with caution unless you're familiar with PCB creation.