The DBHB9004000800A from Qotana is a 90 Degree Hybrid Coupler with Frequency 4 to 8 GHz, Average Power 50 W, Peak Power 0.5 kW, Insertion Loss 0.25 to 0.35 dB, Isolation 20 to 22 dB. Tags: Module with Connectors. More details for DBHB9004000800A can be seen below.