The ZMDC-10-1+ from Mini Circuits is a Directional Coupler with Frequency 0.5 to 500 MHz, Coupling 11.45 to 11.86 dB, Directivity 34.83 to 75.75 dB, Power 1.5 to 3, Average Power 1.5 to 3. Tags: Module with Connectors. More details for ZMDC-10-1+ can be seen below.