1.85mm Microwave connectors operate up to 65 GHz. 1.85mm Microwave connectors are compatible with 2.4mm Microwave connectors and have the same robustness. In recent years, 1.85mm Microwave connectors have been optimized to reach 67 GHz because Microwave connectors are more sophisticated and more expensive, and mating them with lower precision connectors can lead to irreparable damage.