The 685-180265-020 from M2 Global Technology is a Directional Coupler with Frequency 18 to 26.5 GHz, Coupling 20 dB, Coupling Variation ±1.20 dB, Frequency Sensitivity ±0.70 dB, Directivity 11 dB. Tags: Module with Connectors. More details for 685-180265-020 can be seen below.