About capacity:

32GB=approximately 28GB-30GB

64GB=approximately 56GB-60GB

128GB=approximately 112GB-120GB

256GB=approximately 225GB-238GB

About Capacity:

100% Real capacity 16GB=approximately 14GB-15GB (14336MB-15360MB) 32GB=approximately 28GB-30GB (28672MB-30720MB) Flash memory vendors are using decimal arithmetic: 1G = 1000MB=1000*1000KB=1000*1000*1000B calculated and the operating system using binary arithmetic: 1GB = 1024MB=1024*1024KB=1024*1024*1024B For example 1GB U disk capacity display: 1GB=(1000*1000*1000) / (1024*1024*1024) So there are some differences between display capacity and nominal capacity of flash memory products If you don't know much about capacity, please Google"U Disk capacity" to get more information. Thank you for your kindly understand

Note:

Speed based on internal testing. Actual performance may be lower depending on the device, interface, usage conditions and other factors.