Recently i get myself a Lexar Class 10 32GB micro SD card to be used with HTC EVO 3D. Surprisingly the read and write speed is not in quantum league compare to the original Class 4 16gb card. I have try to use edit the cache size for SD from 128 to 512 but the performance do not improve much.. Maybe it is the Android 2.3.4 issue. We need a fix for this!!!!