Exceptionally Quiet, Superior Reliability, Great Value Whether you\'re assembling a very quiet system, upgrading an existing PC, or building a multi-GPU gaming system, your build will benefit from this PSU series that simply has the best combination of features at a very popular price. Features Two 12V-rails and up to four PCI-express connectors for powerful multi-GPU systems 80PLUS(R) Gold / Bronze certification with up to 92% power conversion efficiency Exceptionally quiet operation thanks to use of a silence-optimized 120mm be quiet! fan Stable operation thanks to DC-to-DC power conversion technology (700W - 400W) Attractively sleeved cables simplify component installation, increase airflow and improve cooling Top component protection with full suite of safety features Meets latest Intel(R) C6/C7, Er P and Energy Star guidelines 5-year manufacturer\'s warranty Product conception, design and quality control in Germany