The HYB-5312-03-SMA-79 from Cinch Connectivity Solutions is a 90 Degree Hybrid Coupler with Frequency 2000 to 4000 MHz, Average Power 50 W, Insertion Loss 0.25 dB, Isolation 22 dB, Coupling 3 dB. Tags: Module with Connectors. More details for HYB-5312-03-SMA-79 can be seen below.