The ZCDC13-K0144+ from Mini Circuits is a Directional Coupler with Frequency 1 to 40 GHz, Coupling 13 dB, Coupling Variation ±1.6 dB, Directivity 10.0 to 33 dB, Average Power 13 W. Tags: Module with Connectors. More details for ZCDC13-K0144+ can be seen below.