RCA cables, also known as phono cables or AV cables, are connectors used to transmit analog audio and video signals. The name originates from the abbreviation of Radio Corporation of America, and the plugs are named for their resemblance to lotus flowers.
RCA cables consist of two main components: the plug and the cable assembly. The plug is typically circular, featuring two terminals: a central conductor (signal) and an outer ring conductor (signal ground). The cable assembly includes conductors, insulation, and a protective jacket. Conductors are usually made of copper or silver wire to ensure excellent electrical conductivity.