I have been told today that unless you are going with a high end system like the i5 or i7 then the standard atx 4 pin will work fine. Steve I think maybe confirmed this. I just want to make sure. I am actually not the one building this PC but I was asking the question for the builder. He said a local PC shop said the power supply would work. They sold him the case and p/s. I know it is a cheap unit because Sam's club has the exact same case and power supply for $35. How do computer shops get away with selling something like this ? I have always been taught to never go cheap on a Power Supply. Oh well , maybe they will learn. Tom