Most cases today come equipped with a standard power supply unit (PSU). Often, those included units are cheap and lightweight. That's where companies like PC Power and Cooling, Antec, Enermax, Fortran, and SilenX come in. The unit we are reviewing here today is from the last manufacturer in that list, the SilenX 400W. As you can tell by the name, the main thing SilenX is going for is quiet computing. Usually quiet is associated with crappy, but no longer; Zalman has carved out an entire niche catering to this market. Now SilenX is tossing their name into the hat. How will their newest PSU perform?