The C1-B08-6 from RD Microwaves is a Directional Coupler with Frequency 7 to 12.4 GHz, Coupling 6 to 30 dB, Coupling Variation ±1 dB, Directivity 17 dB, Average Power 10 to 50 W. Tags: Module with Connectors. More details for C1-B08-6 can be seen below.