A speaker wire termination consisting of a single, fat shaft which bulges on the sides similar to a banana and inserts in 5-way binding posts. Banana connectors are popular termination methods for speaker wire due to their ease of connection and large contact surface. The banana connector is inserted into the end of a 5-way binding post, popping into a circular hole. The rounded bulges along the connector’s central shaft hold it in place within the binding post. ue to its connection method, the banana termination provides the most contact area of any other widely used speaker wire termination (which ensures the maximum signal and power transfer from amplifier to wire to speaker). Along with the spade lug connection, the banana connector is certified by Lucasfilm THX as a suitable speaker wire termination.