SB2.0. Stable transmission speed can be used to move the hard drive, as long as the USB port of removable storage devices can be used 

There are three heads, two wide end is male USB port, USB port and the other end is also a male, is to enhance the smallest USB-powered, stable transmission 

Mobile hard line interface: USB-2USB-head (3A line), which is used to take power USB head, black, line length 50CM 

SB dual powered mobile hard line line 

Absolute data transmission to ensure a stable and reliable! !