1CK, BNC B/HEAD 50R Connector Type: BNC, Coaxial Impedance: 50ohm Mounting Type: Bulkhead Insulation Resistance: 5000Mohm Insulator Material: Teflon / Delrin Plating: Nickel Centre Contact Resistance: 1.5mohm Coaxial Cable Type: RG141, RG303, RG58, RG58A, RG58C Coaxial Connector Type: BNC Female Contact Material: Phosphor Bronze Female Contact Plating: Gold Male Contact Material: Brass Male Contact Plating: Gold Max Operating Frequency: 4GHz Outer Contact Resistance: 1mohm Plug Body Material: Brass VSWR: 1.3