A phone connector (tip, ring, sleeve) also called an audio jack, phone plug, jack plug, stereo plug, mini-jack, or mini-stereo. This includes the original 6.35mm (quarter inch) jack and the more recent 3.5mm (miniature or 1/8 inch) and 2.5mm (subminiature) jacks, both mono and stereo (balanced) versions.
A DIN connector is a connector that was originally standardized by the Deutsches Institut für Normung (DIN).
The BNC (Bayonet Neill Concelman) connector is a very common type of RF connector used for terminating coaxial cable.
TOSLINK or Optical Cable is a standardized optical fiber connection system.
XLR connector plugs and sockets are used mostly in professional audio and video electronics cabling applications. XLR connector are also known as Cannon plugs after their original manufacturer. They are used for analog or digital balanced audio with a balanced line
Digital audio interfaces and interconnects with theAES/EBU interface also normally use an XLR connector.
RCA connectors, also known as phono connectors orphono plugs, are used for analog or digital audio or analog video. These were first used inside pre-World-War-II radio-phonographs to connect the turntable pickup to the radio chassis. They were not intended to be disconnected and reconnected frequently, and their retaining friction was quite sufficient for their original purpose. Furthermore, the design of both cable and chassis connectors was for minimum cost. Initially intended for audio frequency connections only, the RCA plug was also used for analog composite video and non-critical radio-freqeuncy applications.