Easy, Reliable Add-on Storage The Seagate Expansion External hard drive offers an easy-to-use solution when you need to instantly add storage to your computer and take Extra Storage for Your Data -:Figuring out ways to store the extra data? Seagate Expansion 4TB 3.0 USB Desktop External Hard Drive is an ideal solution that adds instant storage space. This external hard drive comes with a huge storage space of 4 TB and can easily accommodate high resolution images, videos and music. Store and organize all your critical documents, audio and video files, movies and more on this high-capacity hard disk drive. Simply plug this Seagate 4TB Hard Drive to your laptop or computer to store all the information with a single click.