This is an RP-SMA-P (Female) connector.If you have a board with a standard SMA connectorwould like to connect to external 2.4 GHz antennasRP-SMA cables without an adapter,then you can use this connector to replace the existing SMA plug.Some benefits of doing it this way is that you won't have to go through the hassle and added cost of usingan adapter and you'll probably get slightly better performancesince an adapter could add some RF power loss to the system due toan impedance mismatch.
