How long can a Flash drive hold data You copied a large amount of family photos or documents to a new Flash drive and put it in storage, how long can you expect the data to be accessible?
The answer is relatively short compared to storing the same data on a CD or DVD: I called 3 major manufactures of Flash drives and 2 gave basically the same answer of 3 to 5 years when store properly. The 3rd gave a max of 10 years storage life, but 5 years is more likely. For everyday use I have USB Flash drive I purchased in June of 2009 and it still work perfectly.
When compared to writing the data to DVD media which some high quality brands advertised as having a life expectancy of up to 50 years or more. Of course DVD media is already on the way out and as number of Laptops don’t even come with a DVD drive and some Desktop’s don’t have a slot to mount a DVD drive.
The problem is technology itself as in a relatively short period of time (about 35 years) the standard media have changed from 5.25 inch floppy disk to 3.5 disks to Cd media, then DVD and now USB 3.0 Flash drives.
So when your son or grandson finds that Flash drive there will most likely be no means of accessing the data even if isn’t corrupted or totally lost. I happen to have a book that was published in the 1860’s during the Civil war and it is still perfectly readable!