OEM-Hitachi ...0G02927 ...*** FREE SHIPPING *** G-Technology 4TB G-DRIVE Professional Strength External Hard Drive .... ?4TB Capacity ?1 x USB 3.0 Port ?1 x eSATA Port ?2 x Firewire 800 Ports ?7200 RPM Speed ?SATA 6Gbps Interface ?64MB Cache ?Plug-and-Play with Mac OS X ?Customizable for up to 16 Partitions ?Preformatted HFS+ with Journaling