My reason for buying was mainly because my USB3 sticks were recognized by my car radio only after repeated plugging. This stick here is not the problem - it is easily recognized from my Alpine radio. The write speed is something around 5 MB / s, which is not outstanding, but I did not so bought the stick because of its speed. At some point even the largest music collection is copied to it. The tiny flash drive can be quickly lost - my tip if you have just not plugged him into the coin purses do - and we hope that you have a hole in it;).