The QHC9-400-500-10-S from Qualwave is a 90 Degree Hybrid Coupler with Frequency 400 to 500 MHz, Average Power 10 W, Insertion Loss 0.5 dB, Isolation 20 dB, Coupling 3 dB. Tags: Module with Connectors. More details for QHC9-400-500-10-S can be seen below.