The ZDC8-10M18-50G-2877 from COM-MW is a Directional Coupler with Frequency 18 to 50 GHz, Coupling 8.8 to 11.2 dB, Directivity 8 to 10 dB, Average Power 10 W, Insertion Loss 2 dB. Tags: Module with Connectors. More details for ZDC8-10M18-50G-2877 can be seen below.