The Seagate Expansion External hard drive by Seagate offers an easy-to-use solution when you need to add data storage to your computer instantly...- Drag & drop file saving, right out of the box..- Fast data transfer with USB (Universal Serial Bus) 3.0 connectivity... The easy-to-use storage solution. Seagate Expansion External hard drive features make it easy to start using this drive within seconds of removing it from the box..- Simply plug in the included power supply & USB (Universal Serial Bus) cable.- The hard drive is automatically recognised by the Windows operating system