The ZFDC-10-2 from Mini Circuits is a Directional Coupler with Frequency 10 MHz to 1 GHz, Coupling 10.6 to 11.06 dB, Directivity 32.99 to 49.75 dB, Power 1.5 to 3, Average Power 1.5 to 3. Tags: Module with Connectors. More details for ZFDC-10-2 can be seen below.