Product parameters: Storage type: TF/SD card Memory capacity: 128GB/256GB/512GB/1TB Applicable objects: driving recorder, tablet computer, reading pen/early education machine, mobile phone, camera Other maximum read speed: 100MB/s Maximum write speed: 65MB/s Kind tips: 1.The default format of the product is: FAT32, if your device does not support this format, you can format the product into exFAT or NTFS on the computer 2.This memory card does not support Nintendo and game console devices. 3. The capacity flash memory products are usually shipped according to the calculation method of 1MB=1000KB, 1G=1000MB, but the operating system using binary arithmetic 1MB=1024KB, 1GB=1024MB, so there are some differences between the memory products that display the capacity and the standard capacity. 128GB=about 110GB-120GB 256GB=about 230GB-240GB 512GB=about 455GB-465GB 1TB=about 955GB-965GB