The ZNDC-6-122-S+ from Mini Circuits is a Directional Coupler with Frequency 500 to 12000 MHz, Coupling 6 to 6.5 dB, Coupling Variation ±0.5 to 1 dB, Directivity 13 to 25 dB, Average Power 2 W. Tags: Module with Connectors. More details for ZNDC-6-122-S+ can be seen below.