The RMHY3.800-2500Sfa from Response Microwave Inc is a 90 Degree Hybrid Coupler with Frequency 800 MHz to 2.5 GHz, Average Power 100 W, Insertion Loss 0.5 dB, Isolation 22 dB, Coupling 3 dB. Tags: Module with Connectors. More details for RMHY3.800-2500Sfa can be seen below.