3.5" External Hard Drive Enclosure provides the easiest way to expand your computer storage space. With the ever increasing number of songs, and HD movies in your library, and its increasing size due to its higher quality/resolution, you always need more storage room. With AHDU350, you will able to increase your storage room up to 500GB with a simple USB connection. With Hi-Speed USB 2.0 at transfer rate of up to 480Mbps, you will able to transfer or backup your mp3"s, digital photos, and digital videos in no time.