RCA connectors are a type of audiovisual or A/V connector. A/V stands for audio/video. They are sometimes called audio jacks or phono connectors (as in phonograph), as they are typically associated with analogue audio cables. In practice, though, they can be used to transmit several types of signals. These include:

• Analogue audio
• Digital audio
• Component analogue video
• Composite analogue video

Right-angle RCA connectors can be handy when a cable needs to terminate with a socket in a tight space, such as under a table or flush against a wall. The 90-degree angle of the plug moulding means it requires less clearance at the back and is, therefore, less likely to get damaged through being pressed and bent against obstacles.Right-angled RCA plugs and jacks are also useful in various specialist applications, such as when a connector needs to be directly PCB mounted.

RCA connectors are widely used for carrying a signal to many types of electrical hardware and devices. You will usually find them on a wide range of devices such as amplifiers, portable music players, TVs, speakers and Hi-Fi equipment, and headphones.