Yes, it's the molex 4 pin cable I need for my final 2 risers

I have enough cables to power the GPUs.
The problem is I need LONG cables, like 2 feet, since my final 2 cards are the furthest away from my PSU.
I have the 1000watt version of this PSU and can run 5 gpus off of the Pci-e connectors (3 cables with 2 (6+2) connectors each).
You should be able to connect more than 4 using just those (unless you are using cards of varying lengths).
The molex 4 pin cables are better suited for risers (not ideal for gpu's) but I believe you can get connectors like the ones below for your gpu's to run of the molex. each molex connector can deliver upto 75watt so keep that in mind for the card you are running.
https://www.amazon.co.uk/StarTech-com-Express-Video-Power-Adapter/dp/B006PHXLRG