Check the listing for details. Official Microsoft Xbox 360 Fat 20GB HDD External Hard Drive. Color: Gray, Condition: Used, Made in United States. Listed at 14.00 USD. The Official Microsoft Xbox 360 Fat 20GB HDD External Hard Drive is a gray external hard drive designed specifically for the Microsoft Xbox 360 console. It provides 20GB of storage capacity, allowing for additional space to store games, media, and other content. With a parallel port connectivity, this unit is compatible with the Microsoft Xbox 360 platform and is an official Microsoft product. Made in the United States, this external hard drive is a reliable and convenient accessory for expanding the storage capabilities of your Xbox 360 console.