EVO 16GB U1 Class 10 speed, Max Read speed to 48MB/s = SDHC
New EVO+ 32GB U1 Class10 speed == Max Read speed to 95MB/s = SDHC
New EVO+ 64GB U3 Class10 speed == Max Read speed to 100MB/s = SDXC
New EVO+ 128GB U3 Class10 speed == Max Read speed to 100MB/s = SDXC
New EVO+ 256GB U3 Class10 speed == Max Read speed to 100MB/s = SDXC
How to verify the Capacity and Speed of the memory card?
1). Please use quality 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.