Technsich work this USB stick properly, it is fairly small, and also brings good USB 3.0 performance (only subjective impression, a benchmark I have not done). The problem I have with this stick is the advertising promises that it is a robust metal casing, in which the logo is aufbebracht with a laser engraving so that it does not wear out. Well, the logo keeps super, however, this "rugged metal housing" very susceptible to bending of the USB connector, since it certainly helps that you can at least recognize the logo. For a USB stick that is applied for the prize that he can on the keychain and should be robust I find him faulty. Seeking for years repeatedly by USB sticks for my keychain, which should also be robust kindly. So whoever has his keys in his back pocket and because sometimes it is, for whom I would not exactly recommend this stick.