Feature:1. ENRICH YOUR ENTERTAINMENT EXPERIENCE: With this hard drive, you will have more space to store your entertainment.2. SAFE AND DURABLE: The product is made of high quality environmentally friendly ABS material, which is resistant to wear.3. ACCURACY CUTTING: Precise cutting and interface ensure perfect fit, specially designed for Xbox 360 Slim game console.4. DATA STORAGE: Downloadable games, demos, for XBOX LIVE profiles, game save data and achievements, etc.5. AVAILABLE SPACE 320GB: Because the drive saves some system files, the free space will be less than 320GB.Specification:Item Type: For XBOX 360 Slim Built in Hard DriveMaterial: ABSColour: BlackCapacity: 320GBApplicable Models: For XBOX 360 Slim Game Console.Package List:1 x Built In Hard DiskNote:Regarding capacity: The hard disk supplier is using the decimal algorithm: 1MB = 1000KB, 1G = 1000MB, but the operating system uses the binary algorithm: 1MB = 1024KB, 1GB = 1024MB. Therefore, there are some differences between the display capacity and the nominal capacity of hard disk products. However, this is allowed. Please don't doubt his authenticity. 40 GB = about 37GB 60 GB = about 55GB 80GB = about 74GB 120GB = about 111GB 160GB = about 149GB 250GB = about 232GB 320GB = about 298GB 500GB = about 465GB 640GB = about 595GB 1TB = about 930GB