CDCP21P CDCP21P Feature DC Plug (2.1 mm) to Pin Connectors Examples of Use Conversion from DC Plug (2.1 mm) to Pin Connectors Product Attributes SeriesMED CC1st ConnectorDC Plug (2.1 mm) [PDF] (MP-121C)Center contact : Red WireSleeve : Black wire2nd ConnectorPin Connectors [PDF]Length150 mm