【NEMA Configuration】Generator 30 Amp 4 prong locking L14-30 plug and four 5-15/ 5-20 outlets. 【Cord】Used 10AWG/3C 100% copper inner wire, support max 30 Amp loading, 12 inch. 【Features】Male with twist lock for safety, female with dust cover for safety. 【Uses】Heavy-duty power adapter for generator, let multiple appliances work at the same time. 【Certified Product】ETL listed, allowing you to use for ten years or longer. 30 Amp to 110 Generator Adapter Cord 4 Prong Twist Lock to House 15 Amp Adapter, NEMA L14-30P Male to Four 5-15R/5-20R Outlets Female