SanDisk 64 GB (32GB x2 = 64GB) SD HC micro SDHC Class 4 Flash Memory Card with Everything But Stromboli (tm) Card Reader Available capacities: 2 GB*, 4 GB, 8 GB, 16 GB, and 32 GB Seamless speed and performance with microSD/SDHC compatible devices Class 4 Speed performance rating (based on SD 2.0 Specification) Tested under the most extreme conditions