For Valued Customers:
1.Why the USB flash drive real capacity is not correct capacity? 
 Flash memory vendors are using decimal arithmetic: 1MB = 1000KB, 1G = 1000MB calculated, but the operating system is using binary arithmetic: 1MB = 1024KB, 1GB = 1024MB.
 so there are some differences between display capacity and nominal capacity of flash memory products.However, this is allowed to exist. Please do not doubt his authenticity.
 
Package Contents:
Flash drive with opp bag Package*1
 
About capacity:  
 4GB=approximately 3.2GB-3.9GB
8GB=approximately 6.9GB-7.3GB        
16GB=approximately 14GB-15GB      
32GB=approximately 28GB-30GB
64GB=approximately 54GB-59GB