Fixed-Length Cable Assemblies Amphenol RF Fixed-Length Cable Assemblies are pre-configured cable assemblies that are available in a wide range of configurations, lengths, and cable types. The cables are available with AMC, AMMC, BNC, MCX, MMCX, SMA, SMB, and other commercially available RF connector series. Amphenol RF Fixed-Length Cable Assemblies are ideally suited for commercial and industrial applications that require standard configurations or lengths.