uxcell 20 Pcs DC 5.5mmx2.1mm Power Jack Socket Female Panel Mount Connector Product Name : DC Power JackConnector;Type : 5.5mmx2.1mm Socket Terminal : 3;Material : Metal, Plastic Size : 21 x 11mm / 0.8" x 0.43"(L*D);Color : Silver Tone, Black Weight : 55g Package Content : 20 x DC Power Jack Connector