Well i'm not a experienced product reviewer when it comes to such memory card kind of thing. Everything seems fine. Delivery time was on time. Writing speed reading speed is normal. I didn't expect adapter would come with it. That's plus 1 star. The only reason i'm giving four star is battery drain of my phone. When I filled this card with almost 15 GBs of music and put it in my phone, my phone's battery was draining very very quickly. Is it supposed to be like this? I'm not sure if it's phone's or this card's faulty. I.ve never been experienced such thing before. So if anyone knows the solution and explanation for this situation I hope U will enlighten me pls. Otherwise this product seems solid and legit.