XFX is releasing their PRO series of power supplies, with single +12 V rail, DC-DC secondary design, and 80 Plus Bronze certification. So far three models were released: 650 W, 750 W, and 850 W. We have already tested the 650 W and the 750 W models, and both proved to have terrific cost/benefit ratios. Let's see if the 850 W model follows the same path.