The ZDC8-35MC2-18G-2136 from COM-MW is a Bi-Directional Coupler with Frequency 2 to 18 GHz, Coupling 33 to 37 dB, Power 80 W, Insertion Loss 0.6 dB, Directivity 15 dB. Tags: Module with Connectors. More details for ZDC8-35MC2-18G-2136 can be seen below.