The PRF-DI17516-30 from Premier RF is a Directional Coupler with Frequency 7.5 to 16 GHz, Coupling 30 ± 1.25 dB, Coupling Variation ± 1.25 dB, Directivity 15 dB Min, Power 50 Watts. Tags: Module with Connectors. More details for PRF-DI17516-30 can be seen below.