ALEKO® RV30-50D25 Heavy Duty RV Cord is capable of passing 50amp of power. Anytime you need an extension which is able to pass high currents - this cord might be your best bet. It's heavy and bulky but it's built to last and work.This one features a waterproof twist to lock socket which is an unbeatable precaution for very wet areas. Your house is too far from the RV, or the campsite's outlet is 25 feet away- all that is not an issue with this cable. And the best part is that you get this good quality item for a reasonable price.