OSTENT 512M Memory Card Unit Storage Space for Microsoft Xbox 360 Original Fat Version Video Games 512MB memory unit for Xbox 360 further enhancing the gaming experience, you can save your games, your Xbox Live profile, and more with this memory unit. Transport your memory unit in the portable carrying case that fits on your keychain. The memory unit requires no setup. Just plug it in, and you can youre your favorite games. Xbox 360 holds up to two memory units, so you can easily upgrade to more storage space. Compatible with: Microsoft Xbox 360 original fat version, not compatible with Microsoft Xbox 360 Slim version