Solid Gear SDGR-550E Deliver true and efficiency power to your system. It can supply extreme power to provide your demanding PC Gaming and multimedia softwares. To avoid overheating, Solid Gear 550W is made with a supreme powerful, ultra silent, 120mm Nano fan. Sleeved finished cables were provided, it also produce better airflow. Besides, with 78% energy efficiency, this power supply cosumes less energy.