This is a PSU - it does the job. The fan is a bit louder than I expected, but it's hidden under the TV stand where it's completely invisible and mostly inaudible during gaming. The fan turns off when the XBox is not powered on. The power cord that comes with this thing is a nightmare - it's a non-polarized, ungrounded NEMA (North American) plug that terminates in an IEC C13 plug (with some kind of ground connection). ). It should be a C7 connector, a two-pronged connector that accepts either polarity. NEVER use this power cord with a computer or other device.