When you need to connect your electronic gadgets to another, you use data cables. The use of data cables really simplified our lives. Now, you can connect your cellphones, your digital cameras, your ipod, your external drive, etc. I can’t think of an electronic gadget that does not use Data Cable. Even two computers can be linked by using a data cable, a cross over patch cable can be used to transfer data from one computer to another, so that is also a data cable because you use it not only to connect but also to transfer data.