ORICO Micro TF / SD memory card 256 GB 128 GB 64 GB 32 GB MicroSD Max 80 m / s class 10 Mini TF card with SD card adapter
Micro SD Card:
About capacity: 32 GB = approximately 28-30 GB 64 GB = approximately 58-60 GB 128 GB = approximately 115-119 GB 256 GB = approximately 230-238 GB
This is the difference in calculations between the manufacturer and your PC, please google gmemory card capacityh to get more information. Your computer says 1 GB = 1.073741824 billion bytes, where the market defines 1 GB = 1.00 billion bytes.