W5SWL Brand Premium Series FME Male to BNC Male RF Radio Adapter Connector - by W5SWL Brand FME Male to BNC Male Coupler RF Adapter Connector Used for connecting a FME Female to BNC Female Connector 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