The LDDC-2/6-40S from Leader-MW is a Dual Directional Coupler with Coupling 40 dB, Coupling Variation ±1.25 dB, Frequency 2 to 60 GHz, Average Power 50 W, Insertion Loss 0.3 dB. Tags: Module with Connectors. More details for LDDC-2/6-40S can be seen below.