The DB50-008060SF 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, Peak Power 1 kW, Average Power 50 W (CW). Tags: Module with Connectors, 50 W, 50 dB Dual-Directional Coupler from 0.8 to 6 GHz. More details for DB50-008060SF can be seen below.