The PRF-DI12652-10 from Premier RF is a Directional Coupler with Frequency 2.6 to 5.2 GHz, Coupling 10 ±1.25 dB, Coupling Variation ±1.25 dB, Directivity 20 dB Min, Power 50 Watts. Tags: Module with Connectors. More details for PRF-DI12652-10 can be seen below.