Can someone please recommend me an ATX power supply on US 110v and how you safely get 9 PCI plugs out of one?
I would go with EVGA.
https://www.evga.com/products/product.aspx?pn=120-G2-1000-XRThis has 8 PCI-E power plugs, so I would also get a well made PCI-E power splitter to have power for the controller board.