Connection Type： Between Series Connector 1 Series： BNC Connector 2 Series： SMAConnector 1 Gender： Jack , Female Connector 1 Polarity： Standard Connector 1 Mount Method： NoneConnector 2 Gender： Jack , Female Connector 2 Polarity： Standard Connector 2 Mount Method： NoneConnector Impedance 1： 50 Body Plating Connector 1： Nickel Body Style： StraightConnector Impedance 2： 50 Body Plating Connector2： Nickel Body Material： Brass

This adapter has sma and bnc connectors factory installed on each end. It's great for connecting gps antenna with sma bnc connectors.Antenna Adapter used to convert the SMA connector found on all Standard  to BNC.