Y-cable or Y cable is a cable type that has three ends - a  common end that leads to a split into the remaining two cable ends. Because of this appearance, the cable is given the name "Y Cable".  These Audio Y Cables have one end that is a stereo male jack, and the other end are two left and right audio channel RCA (phono) male jacks to connect outputs to external speakers, or to the analog audio inputs of monitors.