multi-function. 3 usb3.1 ports + ms sd m2 tf card ports.
Led indicator shows the power status.
Transfer speed up to 5 gbps with usb3.1 ports.
Backward compatible with usb 2.0.
Plug and play. Hot swap. No driver needed.
Support for windows xp, windows 7, 8 and mac os, linux.
Built-in one-current and over-voltage protection