Precision RF Connectors & Cable Assemblies Samtec Precision RF Connectors and Cable Assemblies support microwave/millimeter wave technologies. The 50Ω connectors and assemblies feature high-frequency bands (DC to 110GHz) and provide excellent repeatability and low VSWR. Samtec Precision RF Connectors and Cable Assemblies offer precise electrical and mechanical results and the performance needed to move into the millimeter wave spectrum through 110GHZ.