The ZFBDC20-13HP+ from Mini Circuits is a Bi-Directional Coupler with Frequency 40 MHz to 1 GHz, Coupling 19.5 to 20.5 dB, Average Power 120 W, Power 10 to 20 W, Insertion Loss 0.3 to 1.1 dB. Tags: Module with Connectors. More details for ZFBDC20-13HP+ can be seen below.