The consistent development of the SL-500. The SL-500 PLUS offers its users a high level of efficiency of at least 82% and thus protects the environment and your wallet. With four S-ATA and three Molex power ports, PCIe 6+2 pin, 4+4 pin and 20+4 pin connectors, the power supply unit offers a variety of configuration options and is therefore ideal for both older and the latest computer systems.