The 685-260520-030 from M2 Global Technology is a Directional Coupler with Frequency 2.6 to 5.2 GHz, Coupling 30 dB, Coupling Variation ±1.25 dB, Frequency Sensitivity ±0.75 dB, Directivity 20 dB. Tags: Module with Connectors. More details for 685-260520-030 can be seen below.