Get from Amazon.com : http://www.amazon.com/gp/product/B005EGXYBC?tag=hawaiianlegac-20
U32 Shadow? 500GB External 2.5-in USB 3.0 Portable Hard Drive Silver
SuperSpeed USB 30 connection also compatible with USB 20
USB-powered no external power supply needed
Compatible with Windows XP78 above MAC OS 102 above Linux 2422 above
Includes a 10GB lifetime Online Backup account with SpiderOak
Backed by a 3-year limited warranty