W5SWL Brand Premium Series SMA (RP)"Reverse Polarity" Female to BNC Male RF Radio Adapter Connector - by W5SWL Brand SMA RP Female to BNC Male Connector Connects a SMA RP Male to a BNC Female Connector Teflon Insulator, Gold Plated RF Pin, Nickle Plated Body IMPORTANT NOTE - RP or "Reverse Polarity" connectors do NOT fit standard connectors. A RP male end will have a female pin, and a RP female end will have a male pin. They do NOT fit standard connectors. by W5SWL Brand is Trademarked - Sold only by Dave's Hobby Shop and NO others. Premium Communications Connectors - not for Cable TV