I'm running a few GAW Fury miners from this: supply, 30A, $26. The stock Fury draws 22w, 0.18a at 12vc. Over-kill but I had it from some Bitcoin mining.

For power connectors I used these, cut off the PCIE connector. They are long and a nice gage of wire, I bought some others that were really trashy and tossed them. I crimped lugs on them but the power supply had a nice retention piece on the screw that should work well without lugs.