The CPLN5KXP-4349 from ETL Systems is a Directional Coupler with Frequency 500 MHz to 18 GHz, Coupling 10 or 20 dB, Coupling Variation ±1 dB, Directivity 10 to 12 dB, Average Power 50 W. Tags: Module with Connectors. More details for CPLN5KXP-4349 can be seen below.