The MQH-2R58R5UB from Marki Microwave is a 90 Degree Hybrid Coupler with Frequency 2.5 to 8.5 GHz, Average Power 10 W, Insertion Loss 2 to 4 dB, Isolation 14 to 23 dB, Coupling 3 dB. Tags: Module with Connectors. More details for MQH-2R58R5UB can be seen below.