The 317.2215-XN from Microwave Devices Inc. is a Directional Coupler with Frequency 7 to 11 GHz, Coupling 30 to 50 Db, Coupling Variation ±1.0 dB, Frequency Sensitivity ±0.50 dB, Directivity 16 dB. Tags: Module with Connectors. More details for 317.2215-XN can be seen below.