The MM-BHC-020040-180 from Mountain Microwave Technology is a 180 Degree Hybrid Coupler with Frequency 2 to 4 GHz, Average Power 50 W, Coupling 3 dB, Amplitude Balance ±0.5 dB, Phase Balance ±10 Degrees. Tags: Module with Connector. More details for MM-BHC-020040-180 can be seen below.