LaCie Rugged USB 3.0 Thunderbolt 9000449 Portable External Hard Drive 2.5 "USB3.0 / USB2.0, Thunderbolt 500GB SSD (Personal Computers)
I use a MacBook_Pro Early_2011 limited to USB-2, but with a Thunderbolt port. I substituted my original HDD trays to a Crucial SSD 2.5 "1 TB. In order to have external media (DDE) a clone of the volume of my OS" Yosemite 10.10 "and other OS
