Summary: this is the single worst piece of equipment I've bought in my 24 years of computer usage My first one would give a "corrupt data' message or "unable to read' which cost me 23 gb of backup and a few files for transfer.
Excerpt: I purchased two of these drives from B&H. I used the first one less than 5 times and it failed, losing all data at a meeting, very embarrassing. The second one failed in a similar fashion, hardly used it at all. What junk. Far too late to return them. Avoid TRANSCEND products like the plague.
Summary: Died after a few minutes of use. Accepted a formatting. Then tried to add a partition and the drive became unusable. Attempts to initialize and reformat failed on both PC and Macs with all utilities we tried. I have never had a failed USB of any kind so this was shocking. Back it went.
Update - failed after less than a year with very light use.
John F., Newegg
18 February 2014
Summary: Quite a few other users have reported problems, so design and quality control seem to be lacking. Lifetime guarantee, but return shipping charges make that kind of useless.
Pros: Worked when new, used for a short time with only a few small files written to it. Seemed speedy back then.
Cons: Let it sit for a few months in cool protected storage, and when used again the write speed had slowed way down from what it had been. After storing data to less than 10% of capacity no more files could be written to it even though it was still detected as a drive by Windows. Downloaded Transcend'...
Cons: I got this thing this summer. Probably haven't even transferred more than 80gb of data onto it since then. Used very lightly (considering the capacity). Plugged it into my computer today and it said it wasn't formatted. Tried to run chkdsk to no avail, tried safely removing and reconnecting a few...
Summary: This drive worked for 7 months. I initially stored about 16GB of data on it. Months later, I erased it and copied about 55GB of data to it. One week later it was dead. I had a back up copy of the data so I did not freak out over it. I would never buy this drive again.