The Pomona Electronics 6749-36 Universal Coaxial Adapter Cable (36") is used with Pomona universal adapter kits. Coax cable assemblies can be created on the spot with any coax adapter. The RG58C/U cable has a 50 ohm impedance and .195"O.D. The couplers on both ends are nickel-plated brass with a gold-plated bronze conductor.