Used but works just fine.  If you have a Solitude 5th wheel, you will eventually need this.

AI Description:

The Camco 50A Power Grip Extension Cable Cord is a reliable and durable accessory for RV, trailer, and camper setups. With a length of 15 feet and a rated power capacity of 500W, this cord is suitable for powering a variety of equipment and appliances. It is designed by CAMCO, a trusted brand in the industry, and is built to withstand the demands of outdoor use. With its CETLUS certification, you can be confident in the quality and safety of this product for all your RV power needs.