DC-022b DC Power Supply Jack Socket Female Panel Mount Connector 5.5X2.1mm Plug Adapter 2 Terminal Types 5.5*2.1 5.5*2.5
https://www.vogueparade.com/shopping/EN/5/10/1005003382865569/dc-022b-dc-power-supply-jack-socket-female-panel-mount-connector-55x21mm-plug-adapter-2-terminal-types-5521-5525//