The CPL20CXP-4325 from ETL Systems is a Directional Coupler with Frequency 2 to 8 GHz, Coupling 20 dB, Coupling Variation ±0.4 dB, Directivity 16 to 21 dB, Average Power 50 W. Tags: Module with Connectors. More details for CPL20CXP-4325 can be seen below.