W5SWL Brand Premium Series SMA Female to N Female RF Radio Adapter Connector - by W5SWL Brand SMA Female to N Female Adapter Connector Used for connecting a SMA Male to a N Male connector Teflon 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