2. About Capacity:
PC says 1GB = 1.073741824 Billion bytes where Market Defines 1 GB = 1.00 Billion bytes.
3. About Speed:
EVO 16GB U1 Class 10 speed==Max Read speed to 80MB/s = SDHC
EVO+ 32GB U1 Class10 speed == Max Rread speed to 95MB/s = SDHC
EVO+ 64GB U3 Class10 speed == Max Rread speed to 100MB/s = SDXC
EVO+ 128GB U3 Class10 speed == Max Rread speed to 100MB/s = SDXC
EVO+ 256GB U3 Class10 speed == Max Rread speed to 100MB/s = SDXC
4. About Format:
FAT32 (microSDHC 8GB-32GB)
exFAT (microSDXC 64GB-128GB)
5. How to verify the Capacity and Speed of the memory card?
1). Please use quaity USB 3.0 card reader to verify all memory card by H2testw on PC. Real memory card should pass H2testw with no error.
2). Please don’t use cheap card reader to test Micro SD card, speed of Micro SD card will be reduced by low quality card reader.
3). Micro SD memory card speed is greatly affected by card reader and the capacity you choose, USB port ect. Low quality device will 100% slow down card speed,1MB=1000KB.