GX16 9-Pin Aviation Socket Plug, also known as circular shell connector. It is a panel-mount type connector with a male end mounted on the panel and a female connector usually plugs into it. It is used in places where a watertight connection is required.Features: Simple to install. Male is panel mountable and female is cable mountable. It has separate male and female pins.Applications: It is widely used in aviation, data acquisition systems, inclinometer, computer automation measurement and control systems, audio/video, test and measurement, communications, etc.