I purchased it from Amazon.in before 5 monthes. After installing on my laptop lots of problems showed. This WB My passport 1 TB hard disk was not worked property on my laptop. There was lots of hanging problems shown. When I connected it with my Laptop then my laptop automatically restarting sometimes. Its very pathetic experience. I needed to use this Hard disk every day for file transfer. So I requested to return this hard disk. And after that I purchased another Hard disk. So friends please verify your laptop or computer compatibility then buy it. Otherwise its looks is just like small passport and its weight is just negotiable. Thats my opinion.