The MM-BHC-040080-90 from Mountain Microwave Technology is a 90 Degree Hybrid Coupler with Frequency 4 to 8 GHz, Average Power 50 W, Insertion Loss 0.3 dB, Isolation 22 dB, Coupling 3 dB. Tags: Module with Connectors. More details for MM-BHC-040080-90 can be seen below.