The big thing I see is "Six powerful +12V rails with high maximum loads offer great compatibility with heavy-duty graphics cards".    If you go EVGA 1600 you get a single rail.

I could be nut's but I think that part might cause some problems.  And I could be wrong, but all mine have been single rail.

Have to agree.
The lepa G1600 is crap!!
My sp20 had it for breakfast.....

If you already own one you can use it and it will work, I have one myself I ran one from, just be careful how you separate the rails...  I went one rail per board, and the 4th rail I used a splitter on and spread across all three boards plus power and it worked fine..

If you are buying something there are much better options, I would just a server PSU myself for less than an ATX option..

 no don't buy that pos

 send me a pm I will send you  a 0.05 coupon for an s-7

in the pm let me know what country you are in .  I will try to find a better psu setup for you