The CCNTFSMAM is a coaxial RF adapter (Inter-series Adapter) featuring an N-Female interface on one side and an SMA-Male interface on the other. Its technical function is to interconnect different connector series (specifically N-Male and SMA-Female).
The adapter maintains a characteristic impedance of 50 Ohms. It is frequently used to connect portable radios or routers to external antenna cables terminated with N-type connectors.