CHUYI Cool Hammer Shape USB 2.0 Flash Drive
USB Capacity:
Flash memory producers are using decimal arithmetic: 1KB=1000Bit, 1MB = 1000KB, 1G = 1000MB calculated,
the operating system using binary arithmetic: 1KB=1024Bit, 1MB = 1024KB, 1GB = 1024MB.
That is why there are some differences between display capacity and nominal capacity of a flash memory product.
And different factories will produce different capacity USB flash drives. So it is normal to have little capacity deviation.
16GB: with usable storage space of 14.4-15GB
32GB: with usable storage space of 28.5-30GB
64GB: with usable storage space of 57.8-60GB
128GB: with usable storage space of 118-120GB