GENERIC SMA Male to BNC Female RF Adapter (2) Package include:2 x adapters Connector Material:Pure Copper with Great connectivity.(Not Alloy) Impedance :50 ohm Commonly Used in RF Applications, Antennas, Wireless LAN Devices , Coaxial cable, Wi-Fi Radios External Antenna, &gt;1000 Times Mating Life Time. Package include:2 x adapters Connector Material:Pure Copper with Great connectivity.(Not Alloy) Impedance :50 ohm Commonly Used in RF Applications, Antennas, Wireless LAN Devices ,  Coaxial cable, Wi-Fi Radios External Antenna, &gt;1000 Times Mating  Life Time. Package include:2 x adapters Connector Material:Pure Copper with Great connectivity.(Not Alloy) Impedance :50 ohm Commonly Used in RF Applications, Antennas, Wireless LAN Devices ,  Coaxial cable, Wi-Fi Radios External Antenna, &gt;1000 Times Mating  Life Time.