DC-022B DC Power Connector Female Socket 2 Pin 5.5×2.1mm

From the shop's description

Product Description: Features with 2 terminals, vertical, PCB mounting, 2.1 x 5.5mm/5.5mm x 2.1mm DC jack connector. Specifications: Product Name: DC Socket Material: Metal, Plastic Main Color: Black, Silver Type: 5.5mm x 2.1mm DC Power Socket Long Pin negative (-) , Short Pin positive (+) Electrical life 5000 times