These special quality 75 Ohm impedance level RCA to BNC adapter plugs enable mixed RCA-BNC type connection with our RCA equipped HF and Video cable types. For channel identification the adapter plugs are equipped with a "van den Hul" marked colour coding ring available in the colours: Red, Green, Blue, Black or White. The connector shell and contacts are heavy 24 Carat gold plated, so oxidation is almost impossible and the conductivity is maintained over a long period of use. The internal insulation is made of Teflon. Also the ground ring has extra springs. Precision machining and high quality materials used throughout ensure a durable connection with minimum signal losses and impedance mismatch reflections. Available: a piece. For optimal contact care we recommend our The SOLUTION contact fluid.