Winchester’s KINGS® brand C series RF connectors are a medium size bayonet coupling connector similar in size to the N connector. The C connector typically handles coaxial cables from .350inch to .450inch OD. However, designs accommodate .078inch to .875inch cables. Frequency range is 0 to 11 GHz. The C connector is a 50 ohm constant impedance connector using an overlapping dielectric interface and is weatherproof.