If this is your PSU, it is of proprietary design. You won't find one like it in a larger size, at least not big enough for that gfx card.
But that won't matter anyway, because that card won't fit. You need a low profile card. http://ecx.images-amazon.com/images/I/717ucecAKLL._SX425_.jpg
If this is your PSU, it is of proprietary design. You won't find one like it in a larger size, at least not big enough for that gfx card.
But that won't matter anyway, because that card won'