The ZADC-13-73-S+ from Mini Circuits is a Directional Coupler with Frequency 2600 to 7000 MHz, Coupling 12 to 13 dB, Coupling Variation ±1 to 2 dB, Directivity 7 to 21 dB, Average Power 4 W. Tags: Module with Connectors. More details for ZADC-13-73-S+ can be seen below.