The Iomega HDD External Hard Drive is a quick and easy way to add secure storage to your desktop PC or Mac. It comes equipped with QuikSync automatic back up and disaster recovery software to help you protect your files without a second thought. It is also preformatted for both USB and FireWire and features plug-and-play simplicity, so you don't have to worry about setting up your computer to communicate with your drive - it works automatically. The Iomega HDD External Drive gives you more than enough capacity to run programs straight from your drive and to save all of your large data or media files to one safe place. Iomega HDD 80GB USB 2.0 External Hard Drive adds secure storage easily and quickly. It is preformatted for PC, which saves valuable set time, and PC and Mac compatibility makes switching between USB 2.0/1.1 or FireWire easy.