Works just as a memory card should! no problems with this product at all.

Has a lock on it, and if you register it there is a lifetime warranty. Although it does not have a case, the plastic part of the packaging is a stiff enough plastic, and clips back together firmly, so you could actually use that as a case if you need one.

It is just like most sd cards for a digital camera. My only reservation is that it is not contained in a plastic protective cover whilst it is out of the camera.