This is a brand new Xbox 360 power supply made by Microsoft. These Xbox 360 power supply are 240v, so they can only be used in countries with 220v to 240v power from the wall, if you live in a country with 110v power, you need to buy the 110v version of this Xbox 360 power supply. We had tried the 3rd party Xbox 360 power supply in the past and found them not to be as reliable as these original Microsoft ones. If your looking for a long lasting reliable Xbox 360 power supply, we believe the original Microsoft one is your best option