The SMA male to F female adapter, piece, is designed for transitioning from a 5mm 50 Ohm to a 6mm 75 Ohm coaxial cable. Use the SMA-F adapter for reliable connections in 3G/4G communication systems, connecting 4G modems and routers to antennas. The SMA-F adapter's body is made of durable brass, ensuring reliability and connection quality. The SMA male to F female adapter, piece, is an excellent choice to ensure stable operation of your equipment.