I always order products from flipkart, snapdeal, I taught of ordering from amazon as price was less in it.
I ordered Sandisk Ultra 32 GB memory card from Amazon.It says that it will catch read and write speed of 48 mb/s but it catches only upto 2 or 3 mb/s .I always prefer of using sandisk sd cards I have 4 or 5 at my home but they are normal that is class 4 ones, even they give speed of 7 to 8 mb/s but this ultra class 10 gives 2 - 3 mb/s .
So I think amazon is selling fake products .DONT ORDER FROM AMAZON.