Why do u need this plug? Shouldn't the PSU turn on when you plug the cube to it?
no . if you have a standalone psu it needs to think it is attached to a motherboard and that you pressed the on switch. that is what the plug does.
this is true of many psu. but as I found out my highest quality psu's my platinum seasonics did not work even with the tricky little plug attached.
the cheaper quality "everest 85plus 800" was great with the cheater plug
http://www.newegg.com/Product/Product.aspx?Item=N82E16817104084I had buyers waiting on these four cubes and since the post office was 2 days late I did not try every psu I have on them. I will test the next set I get more thoroughly.