I bought this stick months ago about 15 and was with the performance so far very satisfied. Since a few days the stick is no longer recognized on USB 3 ports. An USB 2 ports, I can still access it. Unfortunately, so is the speed advantage, because I bought the stick there. The seller "Memory Man" rejected any processing of the complaint. I should consult with my problem directly to the manufacturer Sandisk. Unfortunately, I have no chance to rate the seller. Therefore, I would like to warn this way in front of the seller "Memory Man".
Supplement 12:03:14 I have the USB flash drive from SanDisk complained directly and the exchange worked without problems. Many thanks to the service from SanDisk! Only the postage to send the stick in the complaint center to the Czech Republic, I had to take over himself. For the stick there are 4 stars. A star deduction, but that he had failed.