The ZDC8-50MC6-18G-2192 from COM-MW is a Bi-Directional Coupler with Frequency 6 to 18 GHz, Coupling 48.5 to 51.5 dB, Power 200 W, Insertion Loss 0.4 to 0.8 dB, Directivity 15 dB. Tags: Module with Connectors. More details for ZDC8-50MC6-18G-2192 can be seen below.