While the Ultra X-Connect 500W PSU is certainly competent in its ability to deliver power, it doesn't really fit SilentPCReview's [sic] critera for a quiet component. The overall performance of the sample is more than adequate from a power delivery perspective, but leaves much to be desired from an acoustic perspective. Even at low power loads (65-100W), the power supply measured well above 30 dBA/1m in our sound tests.
The efficiency of the unit was fairly good, but far below that of some recent PSUs to pass through our rigorous testing procedure. Active PFC is increasingly seen on higher priced PSUs; its absence here is a bit disappointing.
The modular cabling system is an excellent, well executed feature. We'd love to see more PSUs come with similar implementations to help prevent case clutter and facilitate efficient airflow. It should also be said that with a bit of modding, this PSU could be quite good acoustically -- swapping out the stock fans with Panaflos is a move some quiet-oriented but bling-driven modders might consider. Lastly, if you're looking for looks -- snazzy fan grill, UV-reactive cables, and high-gloss paint finish -- along with high power, then the Ultra X-Connect is certainly worthy of your consideration.