The ZFDC-10-6+ from Mini Circuits is a Directional Coupler with Frequency 0.01 to 20 MHz, Coupling 11.32 to 11.62 dB, Directivity 31.17 to 38.03 dB, Power 1.5 to 3, Average Power 1.5 to 3. Tags: Module with Connectors. More details for ZFDC-10-6+ can be seen below.