10pcs USB chip stick memory flash 4GB 8GB 16GB 32GB 64GB 128GB USB 2.0 short board U disk chip pendrive

1.what is the write speed ?

our USB flash drive write speed is 5M/S — 10M/S or you will lucky to get 11M+.

if you want to save 1GB film in our USB flash drive,that you need the time is 2 mins,it save your time.

2.Why the USB flash drive real capacity is not correct capacity?

Flash memory vendors are using decimal arithmetic:1MB = 1000KB,1G = 1000MB

calculated, the operating system using binary arithmetic:1MB = 1024KB,1GB = 1024MB;

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

Specifications:

Reading Speed: 10MB/s+

2 years limited warranty

About capacity:

128MB=approximately 115.2MB-119.04MB

256MB=approximately 230.4MB-238.08MB

512MB=approximately 460.8MB-476.16MB

1GB=approximately 0.92GB-0.97GB 

2GB=approximately 1.7GB-1.85GB 

4GB=approximately 3.5GB-3.7GB

8GB=approximately 7.4GB-7.8GB

16GB=approximately 14GB-15GB

32GB=approximately 28GB-30GB

64GB=approximately 58GB-59GB

128GB=approximately 115.2GB-119.04GB

This is calculation difference between manufacturer and our PC, please Google ‘Memory card capacity’ to get more information