W5SWL Brand Premium Series Mini-UHF (MUHF) Female to Female Coupler RF Radio Adapter Connector - by W5SWL Brand Mini-UHF (MUHF) Female to Female Coupler RF Radio Adapter Connector Used for connecting two Mini-UHF Male connectors together Delrin Insulator, Gold Plated RF Pin, Nickle Plated Body Impedance: 50 Ohms by W5SWL Brand is Trademarked - Sold only by Dave's Hobby Shop and NO others. Premium Communications Connectors - not for Cable TV