Rounding off the package
The modular cables are presented in a pouch and the overall set is, from what we can tell, the same as the HX1000's. A second 8-pin EPS connector enables you to hook up dual-CPU boards, and there are enough Molex connectors to power an esoteric rig.
Summary
We'll shortly be putting the Corsair HX850 through the testing paces but, prima facie, it appears to be a slight improvement over the HX1000 - an already-strong PSU. It needs to be, as well, because competition in the 750W-850W space is particularly fierce. What may help Corsair's cause is the fact that both the 750W and 850W HX-series PSUs are priced at competitive levels, coming in at £120 and £140 on pre-order, respectively. What Corsair's done is fill the void in its professional PSU series with sharp specs and decent pricing. Stay tuned for the full review, though.