The SeaSonic SS-400AGX Power Supply SUPER 400 SILENCER is a high-quality power supply unit designed for computer systems. With a maximum power output of 400W, this silver-colored unit from Sea Sonic is known for its reliability and efficiency. Featuring the model SEASONIC SS-400AGX and originating from China, this power supply is a popular choice for those looking to upgrade or replace their current system's power source. Its silent operation makes it an ideal option for users seeking a quiet and stable computing experience.