This is the second time I've ordered these devices, but apparently I did not learn from the first time and didn't study the fine print before purchasing a second time. These drives do not work with my laptop or any other device, as they are not compatible with "usual" USB ports. And, although my laptop has a port into which these devices fit, when I insert one, it immediately shuts my computer down. So if you are thinking of buying these (yes, the price is wonderful), PLEASE be sure that you are getting what you think you are.