Molex RF Adapters Molex RF Adapters consist of many types and styles of between series adapters. These RF/Microwave adapters are designed for test and measurement in the lab as well as system bulkhead applications. Molex RF Adapters provide transitions between popular coaxial connectors of differing interfaces (series). Adapters are available in a variety of materials and finishes. These materials and finishes include stainless steel with a passivated finish, nickel-plated brass, and nickel-plated beryllium copper.Learn More