W5SWL Brand Premium Series TNC (RP)"Reverse Polarity" Male to TNC (RP)"Reverse Polarity" Female Right Angle Coupler RF Radio Adapter Connector TNC RP Male to TNC RP Female Right Angle Coupler Adapter Connector Used for connecting a TNC RP Female to a TNC RP Male 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. These are Communications Connectors - not for Cable TV