Really disappointing performance. I bought this drive to store and transfer large video files and, based on all the previous 5 star reviews, was expecting to be able to copy video files to it relatively quickly. Not so! In fact, my old 16Gb Corsair Voyager is considerably faster. A comparison test transfering a 2.3Gb .mkv video file from my PC to each of the flash drives came up with the following results:
Corsair Voyager: transfer time = 2m 24 secs
Kingston Data Traveller: transfer time = 7m 09 secs
No contest and I've wasted £22!!