be quiet! SFX L Power 500W is especially recommended for mini ITX PCs and compact gaming systems. For compact PC systems that perform beyond the ordinary, with an ideal combination of features, power, efficiency and reliability, choose SFX L Power 500W. 80 PLUS® Gold certification (up to 92% efficiency) 4 PCIe connectors for powerful GPUs Stable LLC, Synchronous Rectifier (SR) and DC-to-DC power conversion Modular cables for maximum build flexibility Temperature-controlled 120mm high-quality fan SFX-to-ATX adapter bracket for usage with larger case sizes