If you use a Mac or a higher end Windows unit, you may have experienced the speed of Thunderbolt external devices. Thunderbolt drives are more expensive than USB drives. Though, a similar 5400 rpm drive using a Thunderbolt connection can read 1.5x faster than USB 3. But you may not care depending on your usage. It has not hurt some users, some 80% of computer users will not find any benefit to Thunderbolt.

Even though it has a 201.8MB/s write speed, according to benchmarks it's surprisingly slow with single-file transfers compared to other portable hard drives.