The ZFDC-10-1+ from Mini Circuits is a Directional Coupler with Frequency 1 to 500 MHz, Coupling 10.31 to 11.04 dB, Directivity 20.05 to 58.25 dB, Power 1.5 to 3, Average Power 1.5 to 3. Tags: Module with Connectors. More details for ZFDC-10-1+ can be seen below.