So far I had only a misfire, but may be due to my smartphone. When transferring data from an external hard drive to another, there has been no crashes. He's not quite as easy and rubberized bottom, so that it is quite safe. Since I was not so good experience with USB hubs have been made, I am a little cautious and not to challenge him with large files. You never know ...
The transfer of data, regardless of whether working with external hard drive or smart phone easily and quickly. Up to a dropout I can now detect any defects and that's why he gets 5 stars to.