The QHM-2-5.4 SQ from Crane Aerospace & Electronics is a 90 Degree Hybrid Coupler with Frequency 5.25 to 5.56 GHz, Average Power 5 W, Insertion Loss 0.5 dB, Isolation 20 dB, Coupling -3 dB. Tags: Module with Connectors. More details for QHM-2-5.4 SQ can be seen below.