The Seagate Expansion 1TB External Hard Disk is the perfect solution for saving your memories. It is pocket sized and completely portable and comes with USB 3.0 connectivity. This hard drive is USB powered and does not require an external power source. With built-in power management, this Hard Drive ensures energy-efficient operation and great performance. All you need to do is drag, drop and save the files you wish to move to the hard drive. This Hard Drive also does not require any software installation and is extremely easy to operate. The drive is automatically recognized by the Windows operating system. The model number for this product is STBX1000301.