RCA Video Coupler can be used to extend RCA component video and RCA composite video cables with simple installation. Allows you to connect two male RCA cables together. A general reason for this kind of conversion is to make a one long cable out of two short or some equipment has a male connection in the back instead of female and so on. These female to female couplers acts as an RCA extension adapter, allowing you to connect your 2 male RCA Cable - and extend your long run RCA cables across your home. RCA f to f couplers work exclusively with (red, yellow, white) RCA wires with male plugs for a variety of electrical equipment, including surround sound receivers, sub-woofers, speaker wire, turntables, RCA TVs, CD players, AV switches for gaming consoles, and more.