Very fast USB 3.0 flash drive, unfortunately, it is in use something very warm. Whether that's good in the long run? The manufacturer is yes 5 year warranty and in 5 years I think he has reached his age and it is again newer, bigger, give faster sticks.
(I have to reproduce it and send it back, unfortunately, because my Pioneer DJ controller with some tracks reading issues with the drive has. But on the PC and Mac he is outstanding.)