I see thanks buddy! So i'm thinking of just buying these (as they're the cheapest I can find atm): https://www.amazon.co.uk/DeLOCK-82924-15-pin-PCI-Warranty/dp/B0057A8TNS/ref=sr_1_33?ie=UTF8&qid=1506351070&sr=8-33&keywords=pcie+power+cable

Cutting the end off, stripping the wire a bit so I can attach to the breakout board, and potentially take the 4 wires out leaving just 2, and connecting the 2 wires to the breakout board.

Seems like it will provide enough watts / amps for each board... so I might just try it and see considering I got the breakout boards coming potentially today or tomorrow...

Think that sounds ok?

Thanks for your input!