1 piece compact version adapter for Electrical Vehicle 14-50 plug charge from 14-30 240V outlet. Molded with electroplated copper terminal in order to avoid surface oxidation effectively. Dryer 30 AMP 4 prong NEMA 14-30 250V 4-prong male plug. EV 4-prong 14-50 female connector for EV charger or UMC. Used 10AWG conductor inner wire, support max 30 AMP loading. Heavy-duty 100% copper wire conductor inside.