Seagate STAA500105 FreeAgent GoFlex 500GB USB 3.0 Portable Hard Drive for $49.00.  Shipping is $0.97 for a total of $49.97 shipped.  Here is a screenshot for your reference.  It features a USB 3.0 interface that is backwards compatible with USB 2.0, 5400 rpm, 192-bit triple DES encryption, 640 MBps maximum external data transfer rate, and [...]