Recently Ultra released an entirely new series of power supply units, the X4. As the name suggests, the X4 series is the successor to the very successful X3 series. It is the 1200W version of the new X4 series unit which we are going to thoroughly test and review today, seeing how much of an improvement it is over an X3 series unit and how competitive it can be in today’s very demanding technology market.

http://www.driverheaven.net/reviews.php?reviewid=869