The ZDC6S-1-4-10A from ZTS Technologies is a Directional Coupler with Frequency 1 to 4 GHz, Coupling 6 dB, Coupling Variation ±0.7 dB, Directivity 20 dB, Average Power 10 Watts. Tags: Module with Connectors. More details for ZDC6S-1-4-10A can be seen below.