5Pcs/Lot DC-099 5.5mm x 2.1mm 2.5mm DC Power Jack Socket DC099 Female Panel Mount Connector Metal 5.5*2.1 5.5*2.5 Waterproof cap
https://www.vogueparade.com/shopping/EN/4003/1/1005002238857511/5pcslot-dc-099-55mm-x-21mm-25mm-dc-power-jack-socket-dc099-female-panel-mount-connector-metal-5521-5525-waterproof-cap//