The QY-30D00 from Clear Microwave, Inc is a 90 Degree Hybrid Coupler with Frequency 20 to 40 GHz, Average Power 50 W, Peak Power 3 kW, Insertion Loss 0.7 dB, Isolation 14 dB. Tags: Module with Connectors, Octave Band Coupler. More details for QY-30D00 can be seen below.