4mm Banana Socket Jack for Banana Plug Terminal Connector is a 4mm banana plug spade connector. The connector is a nickel-plated aluminum alloy core with a hard plastic shell for insulation. This makes it durable and has stable performance.
The wire can be soldered directly on to the connector. This connector is suitable for spade terminals, banana plugs or bare wires; which is easier to install and use.
Also, the connector has color-coding for maintaining the polarity.