The CPL-5210-30-SMA-79 from Cinch Connectivity Solutions is a Directional Coupler with Frequency 0.5 to 1 GHz, Coupling 30 dB, Coupling Variation ± 1 dB, Frequency Sensitivity ± 0.75 dB, Directivity 25 dB. Tags: Module with Connectors. More details for CPL-5210-30-SMA-79 can be seen below.