Feature: Impressed Shape, Easy to distinguish from others and Not easy to lose. ideal for carrying personal data or work documents from one place to another. Perfect for school, college, work, and home. Easy to use,only plug in.Easy to read and write in high speed. Quality Testing: All products are tested before shipping We adopt the most authoritative testing software H2test to ensure its function Note: 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. If you have any questions about the usb flash drive,please email and we reply you within 24 hours