Tweaknews.net posted a review on the XClio StablePower 850 Watt Power Supply

During my battery of tests, Xclio's Stablepower 850W PSU lived up to its name. They could also legitimately call it the “Silentpower,” as it performed its duties without a whisper of noise. (That name is already taken, but I couldn't help myself.) The Stablepower 850W has both stability and silence, as well as features like active PFC, 80% efficiency and a two-year warranty.

XClio StablePower 850 Watt Power Supply Review