The ZFBDC20-900HP from Mini Circuits is a Bi-Directional Coupler with Frequency 800 to 900 MHz, Coupling 19.86 to 20.31 dB, Average Power 10 W, Power 0 to 10 W, Insertion Loss 0.11 to 0.13 dB. Tags: Module with Connectors. More details for ZFBDC20-900HP can be seen below.