A data cable transmits information in the form of binary electrical communication signals between systems.A data cable operates both functions- it charges the devices and also transfer data.A data cable is any media that allows baseband transmissions(Binary 1,0s) from a transmitter to a receiver.Data cables provide communication between devices.For example,the data cable (i.e. DVI,HDMI or VGA)that connects your monitor to your computer allow it to display a picture on the monitor.Other popular examples of data cables include the CAT5,IDE/EIDE,SATA,and USB cables.With a USB cable,connect your phone to your computer.Under "Use USB for",select File Transfer.An Android File Transfer window will open on your computer.Use it to drag files.