"The SilverStone Nightjar SST-NJ520 fanless power supply occupies a niche market and is targeted towards users who want a silent power supply for use in noise-sensitive areas such as a recording studio or science lab. The NJ520 easily delivered 520W combined DC load with outstanding voltage regulation and excellent AC ripple suppression, even at full load."
Lee Garbutt - PC Perspective.
SilverStone 520w Nightjar fanless PSU review by PC Perspective - Introduction & Conclusion.