AC Power Splitter 14-30P to 14-30R and 14-50R 250V/7500W. 36 inch (3 Feet). Molded with electroplate copper terminal in order to avoid surface oxidation effectively. STW 10AWG/4C cable with molded connectors. Heavy-duty power adapter cord, 100% copper conductor inside. NEMA 14-30P Plug*1 , 30 AMP 4-prong Dryer male. NEMA 14-30R Receptacle*1 , 30 AMP 4-prong Dryer female connector.. NEMA 14-50R Receptacle*1 with handle, 50 AMP 4-prong female connector for both RV and EV.