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, 4 Pole |
| _Description | Trailer & Car Sides, Trailer & Car Sides |
| _Lead | 3-48", 1-18", 3-48", 1-18" |
| _Shrouded | Yes, 5' Extension Harness, Yes, 5' Extension Harness |