The QSDC-400-2700-K2-40-N from Qualwave is a Directional Coupler with Frequency 400 to 2700 MHz, Coupling 40±1.5 dB, Directivity 20 dB, Average Power 200 W, Insertion Loss 0.5 dB. Tags: Module with Connectors. More details for QSDC-400-2700-K2-40-N can be seen below.