Seagate Expansion Portable USB 3.0 2.5" 1TB External Hard Drive - STEA1000400 (Certified Refurbished) 1 Terabyte Capacity, 2.5-inch Hard Drive SuperSpeed USB 3.0 interface, USB powered Backwards compatible with USB 2.0, Portable design Instantly add more storage space to your computer and take large files with you when you travel