- Rectangular Coding/Keying Pins-PlugsRectangular Connector AccessoriesRectangular Connector AdaptersRectangular Connector AssembliesRectangular Connector BackshellsRectangular Connector ContactsRectangular Connector CoversRectangular Dummy Plugs & ReceptaclesRectangular HousingsRectangular Insert BasesRectangular Insert Frames & FlangesRectangular Insert HoodsRectangular Inserts