I have tried that usb2, but it is faster than other key I possède.Pas cap to lose, the withdrawal system works well. A discreet blue LED indicates that the key is working. More compact compared with a Kingston DataTraveler SE9, which is a good key and fine solid USB2, for against the Transcend USB 3 jetflast 790 is twice as fast in writing. I leave it to other buyers to reveal their USB 3 performance.