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DriverHeaven.net posted a review on the Ultra X4 750W Power Supply



Ultra's latest PSU series, the X4, consists of no less that 7 units with an output ranging from a meager 500W up to a mind blowing 1600W. The X4 series is the successor to the very successful X3 series which has been Ultra's flagship range of products for several years.
Ultra X4 750W Power Supply Review