CDCJ21S CDCJ21S Feature DC jack (2.1 mm) to Socket Connectors Examples of Use Conversion from DC jack (2.1 mm) to Socket Connectors Product Attributes SeriesMED CC1st ConnectorDC jack (2.1 mm) [PDF] (MJ077N)Center Pin : Red WireSleeve : Black wire2nd ConnectorSocket Connectors [PDF]Length150 mm