Feature:
Supports hot plug & play, High speed USB 3.0 port
No physical drive required
Plug-and-play; no external power supply required, USB bus-powered
Support all current computer systems
speeds vary depending on types of file being transferred and computer configuration.
Read Rate: 70Mb/S Write Rate: 7Mb/S
Interface USB 3.0
Cool and changeable lights

About capacity:
4GB=approximately 3.6GB-3.8GB
8GB=approximately 7.4GB-7.6GB
16GB=approximately 14.4GB-14.8GB
32GB=approximately 28.5GB-30GB
64GB=approximately 58.5GB-60GB
128GB=approximately 110.5GB-120GB
Vendors are using Flash memory decimal arithmetic: 1 MB = 1000KB, 1G = 1000 MB
Calculated, operating system with binary arithmetic: 1 MB = 1024KB, 1 GB = 1024 MB;
So there are some differences between display capacity and nominal capacity of flash memory products

Package included:
MINI USB Flash Drive * 1

Attention:
To avoid data loss or mechanical damage, do not power down your computer or unplug flash disk during transfer.
Please do not remove your USB flash drive when it is being used otherwise your data may loss.
After using USB flash drive, it is better to remove it from device as soon as possible. That will helps to extend its storage lifetime.
Please do not format your USB flash drive frequently, otherwise the USB will be damaged easily.