MHF 4 LK & MHF I LK Cable Assemblies Molex MHF 4 LK and MHF I LK Cable Assemblies feature standard MHF receptacles and MHF connectors feature a patented locking system. These locking systems are available in multiple standard configurations with MHF locking plugs and connector interfaces. The locking systems offer added reliability and security for rugged RF applications subjected to continuous shocks and vibrations. These cable assemblies speed up time to market, are durable, and eliminate tooling. The MHF cable assemblies operate at 50Ω impedance, 20mΩ maximum contact resistance and 60V rated voltage. These cable assemblies are ideally used in commercial vehicles and aviation, medtech, mobile devices and data/computing.