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® 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® C6/C7, ErP and Energy Star guidelines 5-year manufacturer’s warranty Product conception, design and quality control in Germany