Seagate FreeAgent GoFlex 1.5 TB USB 3.0 Ultra-Portable External Hard Drive in Black STAA1500100 USB 3.0 plug-and-play drive Easy-to-use preloaded backup and encryption software Upgradable to FireWire 800 or eSATA Access content over the network and on TV when paired with other GoFlex products USB 3.0 plug-and-play drive