Practical because it is easily opened by pushing back the hood back. Small problem, the hard drive is released from its housing sata when I put it in my bag. To address the concern, I had to adapt a little self-adhesive foam over the back to keep the hard drive (given a small self-adhesive foam is already provided by the manufacturer with but I used to put on top of the hard drive). With two small adhesive foams dislodging the hard disk is set. The practical side of this kind of product is that it can quickly changed the hard drive. The USB side 3 is really nice.