The ZCDC13-K0244+ from Mini Circuits is a Directional Coupler with Frequency 2 to 40 GHz, Coupling 13 dB, Coupling Variation ±1.4 dB, Directivity 9.5 to 29 dB, Average Power 20 W. Tags: Module with Connectors. More details for ZCDC13-K0244+ can be seen below.