EPS or PCI-e (or both?)

Hey guys

As the title says.

https://www.av-cables.dk/forlaenger-kabel/intern-8pin-plug-8pin-jack-stroem-adapter.html

It says:
Internal MAINBOARD 8pin plug - 8 pin jack power adaptor
Suitable for PC power supplies without PCI express plug

I've compared a lot of pictures, and as far as I can tell, this is a universal extension. Didn't know that was a thing. Your thoughts?

I need it for those last three centimeters for CPU power and fan-side-up PSU

For some reason that page won't translate for me so can't understand some of the terms. I don't think eps plug and an 8 pin pciexpress plug are pinned the same.

IIRC that the pinout is reversed so you'd have 12v on the ground using a PCIE one, if it even fit in the socket.

I have a EPS one around the house so they definitely exist but I don't know of a good .dk place that'd have them.

Contacting their live chat, did some more digging because of you beers and it looks like you're right.
"Besides that the + and - are changed, so if you could squeeze it in, you would shorcircuit your board." - someone on Tomshardware
At least I'll have a text based message, so it's their fault if I blow up my PC

Edit: it was PCI-e, and they don't have EPS. Best cable site in Denmark though, shame.