Western Digital 500GB My Book Essential USB 2.0 External Hard Drive - WDH1U5000N

# Easy to set up, easy to use - Installation is a snap because you don't really install this drive, you just plug it in and it's ready to use.
# USB 2.0 interface - A simple connection that offers convenience and compatibility among multiple computers.
# Fits right in - Takes no more space than a paperback book. Collect two or more and they nest neatly together like volumes on a shelf.
# Smart and energy efficient - Turns itself on and off with your computer.
# PC and Mac compatible - Works with both Windows� 2000/XP/Vista and Mac� OS X 10.4.8 or later