The CH-90-25500-27000-10-KF from DETI Microwave is a 90 Degree Hybrid Coupler with Frequency 25.5 to 27 GHz, Average Power 10 W, Insertion Loss 3.5 dB ±0.5 dB, Isolation 18 dB, Coupling 3 dB. Tags: Module with Connectors. More details for CH-90-25500-27000-10-KF can be seen below.