The HC90-036042SF from Corech Microwave is a 90 Degree Hybrid Coupler with Frequency 3.6 to 4.2 GHz, Average Power 50 W, Peak Power 0.5 kW, Insertion Loss 0.3 dB, Isolation 22 dB. Tags: Module with Connectors. More details for HC90-036042SF can be seen below.