The VDC-40180-6 from VidaRF is a Directional Coupler with Frequency 4 to 18 GHz, Coupling 6 dB, Coupling Variation ±0.70 dB, Directivity 4 to 18 dB, Average Power 2 to 50 W. Tags: Module with Connectors. More details for VDC-40180-6 can be seen below.