I've had my Avalon 741's running off EVGA 1300W Gold PSUs for about 5 months 24x7. I also have Antminer's using Bitmain PSUs but that's mainly because they need so many PCIe connectors. I run the Bitmain PSUs off 220V circuits where I can and otherwise I use them on 115V circuits. The 741's only require 6 connections which the EVGA 1300 can provide. If you only have 115V power outlets than the EVGA is a good choice in my opinion (plus it only takes a few days to order one online).