The MCD060180D40M from Meuro Microwave is a Bi-Directional Coupler with Frequency 6 to 18 GHz, Frequency Sensitivity 1.5(Typ.) dB, Coupling 40 to 50 dB, Power 250 W, Insertion Loss 0.25 dB. Tags: Module with Connectors. More details for MCD060180D40M can be seen below.