The MQH-2R58R5 from Marki Microwave is a 90 Degree Hybrid Coupler with Frequency 2.5 to 8.5 GHz, Insertion Loss 2 to 4 dB, Isolation 14 to 23 dB, Coupling 3 dB, Amplitude Balance ±0.4 dB, ±2 dB. Tags: Die, Module with Connectors. More details for MQH-2R58R5 can be seen below.