This micro SD card works great. I bought this card for my champagne 64GB Asus Prime. But I still didn't have it on hands so I used it on My MetroPCS Lg Esteem android phone and it worked. 3 day ago I received my Asus prime. Inserted the card in and boommmm, now I have close to 120 GB on my tablet. Load card with MKV movies and music. Movies play directly from the micro card. Good quality card. Movies are perfect on the tablet.