I just bought the SeaSonic M12II 520 Bronze EVO Edition 520W and i can't add it to my inventory or part list.
This unit? https://pcpartpicker.com/part/seasonic-power-supply-s12ii520bronze
So this one? http://www.newegg.com/Product/Product.aspx?Item=N82E16817151093
Hmm... The M12 we have on the site does list a 520w unit, but it's that S12 unit. Weird.
I would suggest, as Sponix linked, to post about it in the Part Additions subforum so that the Staff can add it to the list.