Summary: I bought this 128 GB flash drive to use exclusively as a backup device for my new PC. I can back up the 40 GB of data in about 15 minutes. Love the ease of using this vs the old external hard drive I had for my old PC.
Summary: When I first used it, it worked well and quickly, but then stopped mounting (showed up less than half the time) and quit copying halfway through the folder. I tried reformatting and restarting twice--no luck. I'm returning it.