The FM2CP1125-20 from Fairview Microwave is a Directional Coupler with Frequency 8 to 40 GHz, Coupling 19 to 21 dB, Frequency Sensitivity ±0.5 to 0.7 dB, Directivity 10 to 15 dB, Average Power 30 W. Tags: Module with Connectors. More details for FM2CP1125-20 can be seen below.