The ZBDC25-2575W+ from Mini Circuits is a Bi-Directional Coupler with Frequency 1.27 to 2.575 GHz, Coupling 24.59 to 25.77 dB, Average Power 20 W, Power 0 to 20 W, Insertion Loss 0.23 to 0.34 dB. Tags: Module with Connectors. More details for ZBDC25-2575W+ can be seen below.