This has no speed, no durability and is not cheap. In crystal disk, it shows a read speed of 100+, but the write speed is 27 max on a USB 3.0 port. I tried copying some 30GB of Data to check its speed, and it was writing somewhere close to 2-3Mbps only. Now, that is very much possible on the USB 2.0 and is comparatively cheaper than this 3.1. Buy a USB 2.0 in a cheaper price than buying this one..