Nexus 350W Silent NX-9003 SFB Power Supply
 

One of the first things you will probably notice is the low wattage of this Power Supply. Well, don't let that fool you. While it's not going to give the kind of power an efficient 500W or larger PSU would, it does provide 350 watts of very high quality power. Being only 350 watts does have it's advantages though. It means that with a low amount of efficient power you can provide a silent PSU which is still Active PFC. You would be much better off with this product than a generic 600W power supply