I had decided to back-up ALL my documents and photos on my computer (and I've got thousands of photos) so I ordered this memory stick with 1T space. Unfortunately the first one didn't work and, contacting Amazon, made very quick change-out for one that does. Unfortunately, I've since found out either I have a slow computer, or the stick and the amount of data being put on it requires days and days to load. I started four 1/2 days ago, and at this moment it is 45% complete! At least it gives one incentive to live! The stick is a nice size and the main mechanism swivel's to give protection to the mainframe. I just have to worry about other users of this system might turn it off, or heavy rains could cause a power disruption.