I’m not at all happy buying this product. It worked okay for the first few days but after that, it got worst. When I first bought this product, it was transfering files at an average speed but after a few days the speed got very low ( about 700kb/ps) . I even tried changing the U.S.B of this hard disc, but the problem continued. All the data I had transferred to it was lost. There wasn’t even an virus in it or any thing like that. Even formating it did not help much. After formating the hard disc, it worked okay for a few days and then again I started to faced the same problem. It was a total waste of my money and all of my important data was lost.