I bought a Western Digital passport drive with 1TB capacity and USB 3.0 couple of years ago. It is beautifully working till now even under the harsh conditions like using it while travelling and in picnic spots etc. I did not see any problems yet. The size of 2.5 inch is very portable and handy for traveling along with it. I finished copying 5movies of each 1GB on average within 5 minutes using USB 3.0 and took 10 minutes with USB 2.0. Western Digital passport drive with any capacity is very highly reliable and trustable.