Audio connectors are used to affix cables to other audio equipment, providing electronic signal transference and grounding protection

Audio transformers are involved in the transmission of voice or sound signals.

Patch panels are groups of ports used to connect lines between communications and electronic devices.

Phone jacks and plugs are connectors used with telephones.

Multiconductor cables contain two or more conductors, each of which consists of a single wire or combination of wires.

Modular connectors and RJ connectors are plug-in units used in many networking and telecommunications applications.

Electrical connectors are devices that join electrical circuits together.