Shrouded connectors provide better protection against weather, dirt and moisture. Unshrouded connectors are found on most OEM trailers. The plugs are interchangeable and can connect together.
| Brand | Dometic / Sierra Switches |
| _Connector | 4 Pole |
| _Description | Trailer & Car Sides |
| _Lead | 4-12" |
| _Shrouded | No |