Ultra X-Finity DR 500W PSU
 

Power supplies come in just about every conceivable configuration. High wattages, single 12V rails, dual 12V rails, triple, quad. You name it, you can find it. One of the newer things we're seeing here in the states is active PFC (power factor correction). Today we take a look at an existing PSU that's been souped up with APFC and a hidden difference.