The PRF-DI12018-10 from Premier RF is a Directional Coupler with Frequency 2 to 18 GHz, Coupling 10 ± 1.00 dB, Coupling Variation ± 1 dB, Directivity 15 dB Min, Power 50 Watts. Tags: Module with Connectors. More details for PRF-DI12018-10 can be seen below.