I used it from 2 months ago in my redmi note 3
I will download and store very huge graphics games in sd card so I very happy for it’s copy speed because I need it .With it I have no tension about very huge files to transfer phone memory to sd card.
Here I will inform you that when you copy or move file anywhere to sd card and sdcard to anywhere it’s speed will defferent.when you copy or move data in sd card it will very fast respect to copy or move any data from sdcard to anywhere.So I will recommed you to buy it.