Western Digital WDG1C3200N My Book Premium Edition 320 GB USB 2.0/Firewire400 External Hard Drive 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 Dual interface features FireWire 400 and USB 2.0 connectivity Device holds up to 320 GB of data and is built with an easy-to-read capacity gauge Measures 5.55 x 2.25 x 6.71 inches (WxHxD)