The QH6258 from Werlatone Inc is a 90 Degree Hybrid Coupler with Frequency 400 MHz to 1 GHz, Average Power 1500 W, Insertion Loss 0.3 dB, Isolation 18 dB, Coupling 3 dB. Tags: Module with Connectors, Surface Mount, Drop In. More details for QH6258 can be seen below.