The TBG-1040-3S-90 from Talent Microwave Inc is a 90 Degree Hybrid Coupler with Frequency 1 to 4 GHz, Average Power 50 W, Insertion Loss 0.3 to 0.5 dB, Isolation 22 to 25 dB, Coupling 3 dB. Tags: Module with Connectors. More details for TBG-1040-3S-90 can be seen below.