Overview and Specifications:
This is calculation difference between manufacturer and our PC, please Google 'Memory card capacity' to get more information
4GB/8GB- Class 4-6 SDHC
16GB/32GB- Class 10 SDHC
64GB/128GB- Class 10-SDXC
Class 6: Read speed around 15-20MB/S ,Write speed around 6-8MB/S
Class10: Read speed around 15-30MB/S ,Write speed around 9-12MB/S
1.The Micro SD card speed is based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors.
2.Micro SD card speed is greatly affected by card reader, adapter, USB port etc. Low quality device will 100% slow down card speed.
1 x Micro SD card
1 x SD adapter
1 x Package