Seagate Backup Plus Slim 1TB Portable External Mac Hard Drive w Mobile Backup (STDS1000100) PLUS Blucoil Hard Drive Case (Certified Refurbished) Sleek metal design - up to 42% thinner Easily back up your computer and content from mobile devices with free Mobile Backup App Apple Time Machine compatible. / Transfers files quickly with USB 3.0 connectivity Firm, durable, lightweight case compatible with most 2.5" hard drives Convenient travel size with external hard cover that provides waterproof protection