The DB50-008060SFH from Corech Microwave is a Dual Directional Coupler with Coupling 50 dB (Nominal), Coupling Variation ±2.5 dB (Balance), Frequency 0.8 to 6 GHz, Average Power 100 W (CW), Insertion Loss 0.50 dB. Tags: Module with Connectors, 100 W, 50 dB Dual-Directional Coupler from 0.8 to 6 GHz. More details for DB50-008060SFH can be seen below.