The HYB-5311-03-SMA-79 from Cinch Connectivity Solutions is a 90 Degree Hybrid Coupler with Frequency 1000 to 2000 MHz, Average Power 50 W, Peak Power 3 kW, Insertion Loss 0.2 Db, Isolation 22 Db. Tags: Module with Connectors. More details for HYB-5311-03-SMA-79 can be seen below.