The 317.2216-XN from Microwave Devices Inc. is a Directional Coupler with Frequency 8 to 12.4 GHz, Coupling 30 to 50 Db, Coupling Variation ±1.2 dB, Frequency Sensitivity ±0.75 dB, Directivity 14 dB. Tags: Module with Connectors. More details for 317.2216-XN can be seen below.