guys, appreciate your insight with this!

what about PCIe connectors?
I would need minimum 6 *8 Pin PCIe connectors from the PSU for 4 GPUs plus 4 risers: 4 of them would power 4 GPUs (150W each), 2 of them would power 4 risers, using 8 Pin Male to Dual 6 pin Female (2*150/4=75W for each riser).
Correct?