... connector supply 2.various design3.we can be customized4.wonderful quality, reasonable priceMaterial :1,Inner conductor: beryllium bronze plating: gold ... outer conductor≤2mΩ6,insulation resistance≥5000MΩ7,Dielectric Withstand: 1000V at the sea level8,Mechanical endurance: 500times 9,VSWR≤1 ... receiving your inquiries. sma 4 hole flange mount jack recept high quality and reasonable price RF CONNECTOR