RF Design SMA Female to RP-SMA Male 2 Pieces coaxial Coax Adapter Coupling Nut Connector Golden Connector material: pure brass with great connectivity.(Not alloy) Connection for two-way radio, Audio, video, and other test equipment, a mobile radio as shown, using a wide range of low-frequency device 4 Impedance: 50ohm Package include: 2 x SMA female to RP-SMA male adapter