XFX started in 1989 and since then has become one of the best aftermarket video card and motherboard manufacturers. Back in May of this year Legit Reviews broke the story that XFX announced that they would be throwing their hat into the power supply ring. XFX’s first offering is the 850W Black Edition. It features a modular cable design, single high-power +12V rail, 80+ Silver power rated, Energy Star 4.0 and RoHS compliant. The unit also carries a 5-year limited warranty. This design however is not entirely XFX's doing, but that of Seasonic. Now, let's look at the full specifications and features list before we get too far.