The QHC9-800-4500-K125-S from Qualwave is a 90 Degree Hybrid Coupler with Frequency 800 to 4500 MHz, Average Power 125 W, Insertion Loss 1.8 dB, Isolation 12 dB, Coupling 3 dB. Tags: Module with Connectors. More details for QHC9-800-4500-K125-S can be seen below.