Amphenol Connex MCX to MCX Cable Assemblies The Amphenol Connex MCX to MCX Cable Assemblies are available in 6', 12', 24', and 36' lengths in right angle, straight, and bulkhead configurations. The Amphenol Connex MCX to MCX Cable Assemblies are for RG-179U, RG-178/U, RG-316U, and RG-316 DS/U cable types in 50Ohm or 75Ohm impedance.Learn more