I have bought this memory card for my Samsung tab2 2 years ago.
This product from sandisk is of class 4 and thus takes lot of time to install.
It takes a lot of time in processing like copying, deleting and moving files from one place to another.
The readability of this card is not very hood as it is nit readable in my blackberry curve.
There are no extra futures as there are no chances for increasing its speed and neither a card reader has been given as given with Samsung evo.
I would not recommend this card to anyone.