The QHM-2-4G SQ from Crane Aerospace & Electronics is a 90 Degree Hybrid Coupler with Frequency 3.6 to 4.4 GHz, Average Power 10 W, Insertion Loss 0.4 dB, Isolation 20 dB, Coupling -3 dB. Tags: Module with Connectors. More details for QHM-2-4G SQ can be seen below.