Dr. Queen 3 RCA Phono Female Socket Extension Adapter Convenient and cost-effective 3-way RCA Female Jack to 3-way RCA Female Jack (Coupler) Adapter Great for home entertainment and video game use. This Component RCA coupler is the perfect fit to change male connectors to a female jack in order to add another length of cable. Can be used to extend RCA component video and RCA composite video cables.