This Seagate Expansion External Drive offers a 3TB add-on storage to any desktop computers or laptops. It's an easy-to-use, plug-and-play external drive where you can just drag and drop files right out of the box with no software installation needed. It features a USB 3.0 connectivity for fast data transfer. Save your internal hard drive from a performance decline by freeing up space and use this external hard drive's 3TB capacity for your important files and data like photos, movies, music files etc. 3TB Expansion Desktop Drive. 3TB Expansion Desktop - The Seagate Expansion desktop drive provides extra storage for your ever-growing collection of files. Instantly add space for more files, consolidate all of your files to a single location, or free up space on your computer's internal drive to help improve performance. Setup is straightforward; simply plug in the included power supply and USB cable, and you are ready to go. It is automatically recognized by the Windows operating system, so there is no software to install and nothing to configure. Saving files is easy too just drag-and-drop. Take advantage of the fast data transfer speeds with the USB 3.0 interface by connecting to a SuperSpeed USB 3.0 port. USB 3.0 is backwards compatible with USB 2.