I bought this key there is about 1 year, and it still works perfectly! She underwent right (closed) that did nothing to him through the two rubber rings and very solid hull. Sealing is impressive: a slight air decompression means when opened. Its strength remains gadget but allows me to take with me the documents I do not want to lose and so I need at all costs to transport, without worrying about the robustness of the key, I put it in a waterproof bag not I know that whatever happens (fall, compression, rain ...) when I would take her work.
Like other reviewers, I noticed a very interesting speed USB2.0 and good speed USB3.0. The cap is screwed, making this key longer made for use where it is moving (Moving House Office for example) that use at home with displacements between devices. The key size also causes a problem for the PC which USB ports are too close: the key takes the place of the two ports. And on my laptop, when I plug the key, it is thicker than my PC and twists slightly, so be careful!
I still recommend that key to whoever needs a robust key.