Powmax Assassin 500W 20+4-pin ATX Power Supply with SATA (Blue) Powmax Assassin500-Watt 20/24-pin ATX Quiet Power Supply General Features: Blue Casing 500 watts tot Large 150 mm high efficiency red LED fan w/ ultra silent design 37 dB maximum noise level at 100% system loading Excellent heat dissipation by honey comb structure Built-in voltage overload protection Colored heat-sink and LED on/Off switch Shielded tube and black connectors