The QC-2040 from Quantic PMI (Planar Monolithics) is a 90 Degree Hybrid Coupler with Frequency 2 to 4 GHz, Average Power 75 W, Insertion Loss 0.3 to 0.60 dB, Isolation 20 dB, Coupling 3 Db. Tags: Module with Connectors. More details for QC-2040 can be seen below.