The ZDDC10S-2-4-30A from ZTS Technologies is a Directional Coupler with Frequency 2 to 4 GHz, Coupling 10 dB, Coupling Variation ±1.25 dB, Directivity 20 dB, Average Power 30 Watts. Tags: Module with Connectors. More details for ZDDC10S-2-4-30A can be seen below.