Shop Nilight 50 Amp to 50 Amp RV Y Splitter Adapter Cord 50A Male Plug to Two 50A Female Outlet NEMA 14-50P 14-50R Pure Copper STW 10 AWG Heavy Duty Cable for RV Camper Generator in high quality, support 2 year warranty. Constructed with 100% pure copper with full 10 gauge wires ensuring high conductivity. The wires are stranded copper, it’s very flexible and the STW jacket is very durable.The jacket is coated with a heavy-duty flame retardant, heat resilient PVC sheath that serves as protection from the outdoor elements, wear and tear.