Western Digital My Book Essential 160 GB USB 2.0 Desktop External Hard Drive WDG1U1600 Store and back up your music, photos, videos and important documents with this external hard drive Easy to set up and use with built-in installation software Simple user interface features USB 2.0 connectivity Device holds up to 160 GB of data Measures 5.55 x 2.25 x 6.71 inches (WxHxD)