I have been using this hard disk drive for almost 3 years now. It is working great no any problem till date. I had dropped it from height almost 4 feet and yet there is no any problem to this particular hard disk. It comes with the 3 years warranty. Although it describes the size as 500GB it has working space of 465 GB only. It is equipped with USB 3.0 and I got transfer speed upto150 MB/S.