The CPL10F2P-4321-B7B7 from ETL Systems is a Proximity Coupler with Frequency 50 to 200 MHz, Coupling 10 dB, Insertion Loss 2 to 2.5 dB, Average Power 0.04 W, Operating Temperature 0 to 45 Degree C. Tags: Module with Connectors, Proximity Coupler. More details for CPL10F2P-4321-B7B7 can be seen below.