The dock plugs into the computer via a FireWire 800 cable and functions much like an iPod or digital camera dock would. Once you get through the unwieldy packaging, it’s easy to pop the drive into its little dock station for use. We tested the 250GB FreeAgent Go Drive equipped with FireWire 800 and USB 2.0 while it lacks a FireWire 400 port, the FreeAgent Go does include an adapter cable for connecting the drive’s FireWire 800 port to a FireWire 400 connector on your Mac. The FreeAgent Go comes formatted for the Mac, is Time Machine-ready right out of the box, and is available at 250GB ($160) and 320GB ($190) capacities. The FreeAgent Go for Mac is an external hard drive built by storage giant Seagate that promises fast FireWire 800 transfer speeds, spacious storage, and a stylish (if bulky) white and aluminum design meant to compliment the Mac.