The QJC-2-3.95G from Crane Aerospace & Electronics is a 90 Degree Hybrid Coupler with Frequency 3700 to 4200 MHz, Average Power 200 to 500 W, Peak Power 10 kW, Insertion Loss 0.3 to 0.5 dB, Isolation 18 dB. Tags: Module with Connectors. More details for QJC-2-3.95G can be seen below.