Toshiba Canvio Basics 2TB Portable Hard Drive - Black (HDTB320XK3CA) Capacity: 1 TB; Speed: 5400 RPM; Transfer Rate: Up to 5 Gb/s; Average Seek Time: 12ms; Cache Buffer: 8MB USB 3.0-powered portable add-on storage and operating system compatibility- Windows 8, Windows 7, Windows XP, Windows Vista, Windows, PC Plug and play operation. Easy to use with no software to install. Accommodates large digital files with spacious storage capacity. Compact, smudge-resistant design. Built-in internal shock sensor