but not sure. has 672 + 672 = 1344 watts single rail on each psu. each psu has 3 cables use 1 full one on two boards split the 3rd cable on the same 2 boards. all draws off the one rail and load should balance. the 3 cables will be doing 600-650 watts for 2 boards it may work.
if this works it is 69+69 = 138 usd may be a good choice cheaper then a evga 1300
see photo:
Thanks!
By the way, it has (4) 6 pin cables on a single rail. I use them on my S3's.