The QHC9-4000-8000-50-S from Qualwave is a 90 Degree Hybrid Coupler with Frequency 4000 to 8000 MHz, Average Power 50 W, Insertion Loss 0.35 dB, Isolation 18 dB, Coupling 3 dB. Tags: Module with Connectors. More details for QHC9-4000-8000-50-S can be seen below.