SanDisk Extreme SD Card 16GB 32GB 64GB 128GB SDXC class 10 memory card card Item details Brand Name: SanDisk Package: Yes Type: SD card Model Number: SDSDUNC / SDSDXXG Read/Write Speed: Class 10 Overcapacity: 16GB = approx. 14GB-15GB 32GB = approx. 28GB - 30GB 64GB = approx. 58GB-60GB 128GB = approx. 115GB-120GB 256GB = approximately 224GB-240GB This is the calculation difference between manufacturer (1GB = 1000MB) and our PC (1GB = 1024MB), please Google memory card capacity to get more information.
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