I have a touch pad (Superpad 2) for which I was looking for a micro SD. I initially opted for a micro SD 16GB class 10 Mustang brand. Unfortunately it had compatibility problems with my tablet (files copied to the card were at times more visible, and others (eg pictures) were illegible). So I returned the Mustang, and I chose this micro SD Class 4 32GB Sandisk. Here no problems, and better, I was surprised that the Sandisk (class 4) is faster on my tablet as the Mustang (though class 10). Here the performance recorded with the application for Android "SD Tools" (average of 5 tests for each card): micro SD 16GB class 10 Mustang: 9.62 MB / s write; 18.02 MB / s read; micro SD Sandisk 32GB class 4: 14.66 MB / s write; 18.44 MB / s read. I specify that it is advisable first to format the card from the tablet. For my part I used the application for Android "FormatSD". In conclusion, I do not regret my voucher for this Sandisk, on my tablet more powerful than the Mustang, and in less expensive per GB. I highly recommend.
