The CD-2-400-2000-40-40-200-NF-NF-NF / 011091 from DETI Microwave is a Dual Directional Coupler with Coupling 40 dB, Coupling Variation ±1 dB (Coupling value tolerance), Frequency 0.4 to 2 GHz, Average Power 200 W, Insertion Loss 0.2 dB. Tags: Module with Connectors. More details for CD-2-400-2000-40-40-200-NF-NF-NF / 011091 can be seen below.