The card worked right away in my grade 3. The transfer rates are very good and the copy of my built-in notebook USB 3.0 Card Reader with 64GB Sandisk card on this card in the supplied USB 3.0 card reader went extremely fast.
It is hoped that the mobile phone manufacturers will block more internal memory in the future. 16GB are extremely low and even 32 GB are quite small.
I can recommend this memory card from Lexar unlimited!