100 ft Heavy-Duty Extension Cord: Ideal for long-distance setups, ensuring your RV stays powered up even when the outlet is far away. (Note: Power loss occurs for cords over 50 ft, 50A may drop to 40A due to increased resistance) 50A Pure Copper Wire: Built with premium 6/3 + 8/1 AWG pure copper wire, this 4-prong NEMA 14-50P to NEMA 14-50R cord supports up to 7500W at 125V. Designed for high-power RV appliances and reliable power transfer on the road Tested to ETL Standards: With STW insulation jacket, this RV extension cord is ready for rain, heat, and harsh outdoor conditions. It delivers reliable power and protection whether used outdoors or for indoor power extension User-Friendly Design: The female end features a bright LED power indicator, allowing your to confirm power status at a glance