This screw-on adapter has a SMA Reverse Polarity (RP) Female connector on one end and a N Female connector on the other end.
Convert a SMA RP Female Connector to a N Female connector
Connect a cable with SMA RP Male connector to a cable with an N Male connector
Permits our Wilson 400 cable with N male connectors, to be used with our RP-SMA antennas, such as our WiFi Antennas. By converting the N male to an SMA RP female with this adapter, now you have a cable which is N-male on one side and SMA RP female on the other.