A plug and socket for coaxial cable. RCA connectors are used for analog audio signals (see analog audio). They are also used for digital audio (see S/PDIF) and analog video (see composite video).
Read more: 6 Third-Party Ryobi Accessories That Would Come In Handy For Any User The connectors on RCA cables typically come in red, white, and yellow. Those colorful connectors aren't just there ...