The quality of Sandisk TF card is very good. The capacity of 1T is not perfect for mobile phones. The software installed on the TF card runs very fast. It is the savior of small capacity old mobile phones. Before buying, I was afraid that my mate8 does not support such a large capacity TF card. After the arrival of the product, it was installed immediately. The mobile phone is fully recognized. It's great. It supports Sandisk.