The HC80-036042SF from Corech Microwave is a 180 Degree Hybrid Coupler with Frequency 3.6 to 4.2 GHz, Average Power 50 W, Peak Power 0.5 kW, Coupling 3 dB, Amplitude Balance ±1 dB. Tags: Module with Connector. More details for HC80-036042SF can be seen below.