ATX 12v length concern

[mojothehut]

Hey all,
Im ordering an EVGA G3 650watt modular psu to connect
to an Asus Maximus X Hero Z370 inside of Fractal Design Define C case.

I just noticed the 8pin 12v connector on this mobo is way up at the top.
The 12v cable is 600mm in length according to evga's website.
Im concerned that the cable wont be long enough to thread behind then all the way up
and come back through the top grommets.

Are there other options, like buying separate cables from somewhere that are longer?
I really dont want to thread the 12v over the front of the mobo, it might run into my
massive noctua D15 anyway.

Im probably being paranoid, but triple checking everything before I sink $1500 into a new rig.
Thanks for any input!

 

[Campy]

I haven't built in the Define C, but I have built in the Define S. I think it will be fine, but of course I couldn't say for sure.

 

[UsandThem]

I have the R5, which is bigger than the C, and I own a EVGA G2 and G3, and there is plenty of length to run it behind the motherboard tray and have it connect where it needs to go.

 

[XavierMace]

If it's not long enough, just get a braided extension cable. Looks better and gives you extra slack if you need it. You can either get them online or your local electronics store probably sells them too.