Whether you’re assembling a very quiet system, upgrading an existing PC, or building a multi-GPU gaming system, your build will benefit from the Be Quiet! Pure Power 9 power supply series that simply has the best combination of features at a very popular price. It's exceptionally quiet thanks to the use of a silence-optimised 120mm fan, features two 12V rails, 80 Plus Silver efficiency and is backed by a 3 year Be Quiet! warranty.