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 |