The 317.2027-30/S from Microwave Devices Inc. is a Directional Coupler with Frequency 7.5 to 16 GHz, Coupling 30±1.25 dB, Coupling Variation ±1.25 dB, Frequency Sensitivity ±0.75 dB, Directivity 15 dB. Tags: Module with Connectors. More details for 317.2027-30/S can be seen below.