Top critical review
I bought 20 of these for use in classroom. ...
April 20, 2017
I bought 20 of these for use in classroom. When I tried to install software on them, 3 of them were unusable. Windows reported "a problem" with the device, and I was unable to re-format, adjust partitions, etc. Since they have been in use, 2 more have spontaneously failed. These are inside closed devices, so they're not being removed and reinserted, so there's little chance that this is related to physical damage. The cards just seem to fail out of the box, or after a bit of use. Very disappointing. They were inexpensive, but now I need to replace them and re-build the software for my class. Very disappointing.