The ZDC10S-1-4-10A from ZTS Technologies is a Directional Coupler with Frequency 1 to 4 GHz, Coupling 10 dB, Coupling Variation ±1 dB, Directivity 18 dB, Average Power 10 Watts. Tags: Module with Connectors. More details for ZDC10S-1-4-10A can be seen below.