This power supply is brand new, exactly the way it came from Sirius. If you have a Sirius Satellite Radio receiver and want to power it in your home then all you need is one of these power adapters and a home cradle (not included) and you"re all set! This Sirius car adapter is compatible with all Sirius Satellite Radio receivers using a 5 volt power supply including: S50 Stratus Starmate 3 Starmate 4 Sportster 3 Sportster 4 Sportster 5 Stiletto 100 Stiletto 10 Stiletto 2 InV 2