I bought WD my passport 1tb hard disk few years ago. Almost 2 years. My internal hard disk was very less storage capability, 256 gb. After buying this, it helps me lot. Not only I can store more documents, but also I kept all the data which I want.
Most interesting thing is it more faster than a ultra pen drive. It gave me 48mb/sec speed when I copied the file. As it is external , so I can easily carried in outside. And its size is so small that I can carry in my pocket and also light weight. Till now it gave me same service as new one. Totally worthful buy for me. I just suggest others that if anyone want to buy external hard disk please buy WD passport. It helps you year after years.