BKL Electrical SMA Adaptors/Connectors to SMA Connector/Adaptors/Couplers/Socket – BKL 419100, The SMA Reverse Connector to SMA Reverse Socket Adaptor is a standard Reverse SMA (Sub-Miniature-A) male to SMA female reverse used mainly for applications in the frequency ranges 1GHz to 18/26.5 GHz (depending upon the design). The plug connector is considered as male and the socket as female, depending upon the design of the inner conductor as metallic pin or as metallic pipe. It has a high mechanical strength owing to the screw lock (8mm). BKL 419100 SMA Adaptor SMA Reverse Plug to SMA Reverse Socket