The CPL-4080-30 from Taylor Microwave, Inc. is a Directional Coupler with Frequency 4 to 8 GHz, Coupling 30 ± 1.25 dB, Coupling Variation ±1.25 dB, Frequency Sensitivity ± 0.60 dB, Directivity 15 dB. Tags: Module with Connectors. More details for CPL-4080-30 can be seen below.