Banana plugs are single-pin electrical connectors commonly used for quick and secure connections in test, measurement, and audio applications. They are designed to plug into matching banana jacks, providing a reliable electrical contact while allowing easy connection and removal.

Banana plugs are widely used with laboratory equipment, multimeters, power supplies, test leads, and speaker connections. Their spring-loaded design ensures good conductivity and a stable fit.

In simple terms, banana plugs are convenient connectors that make temporary or frequently changed electrical connections fast and reliable.