Dear Customer 

we are usb factory, all usb with real capacity and high quality,
we can custom logo as your request on usb 

 send you logo file to our email box or send logo by order message.

Note!The LOGO file is clear JPG or PSD or CDR or AI file that you have!
 

What is the real capacity?

Professional U disk Factory , because computer algorithm is different from U disk capacity of the algorithm,
computer algorithm 1GB=1024MB ,but U disk capacity of the algorithm 1GB=1000MB,

so there are some differences between display capacity and nominal capacity of flash memory product.
 

4GB=approximately 3.5GB-3.9GB
8GB=approximately 7.2GB-7.8GB
16GB=approximately 14GB-15GB
32GB=approximately 28.5GB-30GB
64GB=approximately 58GB-59GB
128GB=approximately 115GB-120GB
256GB=approximately 225GB-245GB

Read and write speed :3-6m/s, read speed: 8-15m/s (transmission speed over a certain relationship with the use of computer configuration.) 


Specifications:
storage capacity: 4GB/8GB/16GB/32GB/64GB/128GB/256GB
Interface: USB 2.0
Environment Temperature:  -40°C - +70°C
Storage Temperature: -50°C - +80°C
USB Service Voltage: 4.5V-5.5V
Storage Lifetime: More than 10 years
Use A-class chip, can be erased repeatedly for 100,0000 times
Operating System: Windows 
USB connection:support Hot plug & Play.
Easy to read and read in high speed,No need drive/power supply only plug in

Packing detail: