The PCD-200-6000-R5N20 from Preferred Power Products (P3) is a Dual Directional Coupler with Coupling 20 dB, Coupling Variation ±1.5 dB, Frequency 200 MHz to 6 GHz, Average Power 500 W, Insertion Loss 0.5 dB. Tags: Module with Connectors. More details for PCD-200-6000-R5N20 can be seen below.