The Z30-13-5-75+ from Mini Circuits is a Directional Coupler with Frequency 5 MHz to 1.5 GHz, Coupling 13.08 to 13.97 dB, Directivity 15.97 to 21.83 dB, Power 0.5 to 1 W, Average Power 0.5 to 1 W. Tags: Module with Connectors. More details for Z30-13-5-75+ can be seen below.