W5SWL Brand Premium Series BNC Male Crimp RF Radio Connector for Low Loss Type 400 Series Coax Cable 2-PACK - by W5SWL Brand BNC Male Crimp Connector Fits Low Loss Type 400 Coax Series Cable 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