Eightwood UHF Female SO239 Panel Chassis Mount Connector with Solder Cup Product Type:4 Hole Panel Mount RF Connector | Gender: female Brass(Not Alloy) material and nickel plated ensure higher signal transmission and connectivity Body Termination:Clamp | Contact Termination:Solder Impedance: 50 Ohm Warranty:1 year | Package: 1pc SO239 connector