The QSDC-400-2700-K4-40-N from Qualwave is a Directional Coupler with Frequency 400 to 2700 MHz, Coupling 40±1.2 dB, Directivity 20 dB, Average Power 400 W, Peak Power 4 KW. Tags: Module with Connectors. More details for QSDC-400-2700-K4-40-N can be seen below.