The WHC2129A from Wavelex is a 90 Degree Hybrid Coupler with Frequency 2.1 to 2.9 GHz, Average Power 10 W, Insertion Loss 0.3 to 0.7 dB, Isolation 23 dB, Amplitude Balance ± 1 dB. Tags: Module with Connectors. More details for WHC2129A can be seen below.