G-Technology G-Drive Mobile USB 3.0 1TB 5400RPM Hard Drive Black (Certified Refurbished) This Certified Refurbished product is manufacturer refurbished it shows limited or no wear Includes all original accessories plus a 90-day warranty High-speed USB 3.0 connectivity, 1TB storage handles videos, photos, documents, and music Thin, beveled aluminum case makes for easy portability, Bus-powered design eliminates the need for a separate power connection Plug-and-play Mac OS setup and easily reformatted for Windows