320GB HDD Hard Drive for Xbox 360 Slim - Generic Version Allows users to expand Xbox 360 Slim experience with download content such as demos, movies, television shows from X box Live Marketplace. The best option for media enthusiasts who game on Xbox 360. The largest storage option for Xbox 360 Slim. Allows you to save game progress, X box Live gamer profile & custom soundtracks from your own music collection. Storage Capacity: 320GB Compatible with Xbox 360 Slim console only. **HDD is Generic and not manufactured by Microsoft. Does not allow Original Xbox game compatibility.