Seagate FreeAgent GoFlex Desk STAC4000100 4 TB 3.5" External Hard Drive

The GoFlex Desk external drive gives you plenty of storage capacity and it's easy to upgrade to any interface you choose. Simply pair the desktop hard drive with a GoFlex USB 3.0 or FireWire 800/USB 2.0 adapter to increase your performance by up to 10 times. It works interchangeably between a PC and a Mac computer.