Ultra’s new line, the Ultra X4 adds an additional X to the name and two new PSUs to their product line up.  The X4 850W and 1050W do not seem to be available yet but you should keep your eyes open for them so you can avoid them.  [H]ard|OCP was not overly impressed with the quality of power they delivered, though they did manage to stay in spec and pass their tests.  The problems lie in the efficiency, which is nowhere near the 80+ Silver rating they claim as well as the build quality.   They are certainly not the worst choice out there but there are definitely better choices out there.
“Ultra is a polarizing name in the PSU game. It has created great PSUs and others that are just short of being fire hazards. So where does it land today with a pair of new PSUs that Ultra says are “whole new approach” to computer power supplies?”

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