Seagate FreeAgent GoFlex 500 GB USB 2.0 Ultra-Portable External Hard Drive STAA500100 (Black) Easy-to-use preloaded backup and encryption software USB 2.0 plug-and-play drive Upgradable to USB 3.0, FireWire 800 or eSATA or access content over the network and on TV USB 2.0 plug-and-play drive Easy-to-use preloaded backup and encryption software Upgradable to USB 3.0, FireWire 800 or eSATA or access content over the network and on TV