SIIG's 4x1 Composite Video & Audio Switch allows you share a display and speakers between 4 Composite video and audio sources. This switch is designed with metal housing for efficient heat dissipation to ensure durability and long life. It is a perfect solution enabling you to display content from four Composite video and audio sources to one display while maintaining signal strength and superior video quality. Switch between 4 sources to a single display A great solution for connecting computer