Thermaltake Smart 500W 80 PLUS Power Supply 500W Single +12V Rail, 120mm Cooling Fan, Intel ATX12V Version 2.3, 2 x PCIe Connectors, 6 x SATA Connectors, 3 4-Pin Connectors, 82 to 86% Efficiency at 20 to 100% Load, 100,000 Hour-Minimum MTBF COMPUTER...