Very satisfied with this single key, I change my review because after a month, nothing special, it is no longer recognized by my phone, not even by my computer. Neither sees .... So certainly it is not very expensive, but for a lifetime of one month ... I do not recommend. I am disgusted because I have a key to 32GB which is recognized by any ordinatuer (nor mine, nor those of the people around me), or by any telephone (neither mine nor any other). I think there has to be a manufacturing defect, otherwise I do not see the problem ...