Whether it be for internal or external use, hard drives are everywhere and everyone always needs one for something. There are so many on the market and seemingly all function well to some extent in terms of speed and portability. So what makes a hard drive good? Well, it all depends on you. If you want something really small, that can be transported without issue, check out the Samsung Portable T1. If you want something with more capacity designed for a small-to-midsize business, then the Western Digital DL4100 is perfect for your outfit. But, if you are someone who needs a portable, high-speed hard drive, that suits your rugged lifestyle, then the Sony PSZ-HB2T 2TB ($189, £121.26, AU $256.22 for 1TB) drive is just for you.