I am using toshiba 1 tb external hard drive and I am happy with this. It has usb 3.0 and it is really fast. I am using it for one and a half year and it’s performance is good. I recommend to use this product. This is very useful to anyone when one have to perform their duty at any place on any computer or laptop.
One more point I would like to discuss is that one can also use as your main hard drive, I mean, you can also install programmes on external hard drive and can use it also. Unless the requirement for that software or programme matches with your computer or laptop you will to use.