This product is not produced by Dometic / Waeco, but it IS compatible with their grey cable commonly installed on Baileys, Burstner motorhomes...
This adaptor is used to add 2x 4 pin reversing cameras on the rear of the motorhome and output it to 2 x 4 pin plugs for a monitor at the front of the motorhome.
This adaptor set is designed to fit the 2010+ Dometic / Waeco cabling. Check our photos to check that your cable is the same as this.