AMC4 to RP SMA IP67 Cable Assemblies Amphenol RF AMC4 to RP SMA IP67 Cable Assemblies feature a plug-to-straight bulkhead jack design on a 1.13mm cable in 50mm to 400mm lengths. The IP67 rating ensures this cable assembly design is dust tight and protected against damage from temporary water immersion between 150mm and 1000mm. Amphenol RF AMC4 to RP SMA Cable Assemblies offer a 50Ω impedance and 6GHz frequency rating.