1- Center Contact: Brass,Silver-plated2- Body-diecast: Brass,Nickel-plated3- Insulation: PTFE4- Crimping suite: copper alloy, nicked or Gold-plated5- Electrical Impedance: 50 Ω Frequency Range:6 GHz Max. Insertion loss:≤0.35dB,DC-6GHz Insulation resistance:≥1000mΩ Voltage Rating: 2700 volts Withstand Voltage:4000V V.S.W.R: