The QSDC-2300-2700-K25-50-NS from Qualwave is a Directional Coupler with Frequency 2300 to 2700 MHz, Coupling 50±0.4 dB, Directivity 23 dB, Average Power 250 W, Insertion Loss 0.3 dB. Tags: Module with Connectors. More details for QSDC-2300-2700-K25-50-NS can be seen below.