DC-099 5.5 mm x 2.1mm DC Power Jack Socket Female Panel Mount Connector Adapter Metal DC099 Open Hole 11MM 5.5*2.1 5.5*2.5
https://www.vogueparade.com/shopping/EN/5/6/1005003337166229/dc-099-55-mm-x-21mm-dc-power-jack-socket-female-panel-mount-connector-adapter-metal-dc099-open-hole-11mm-5521-5525//