The DC-0727-DINF-XX from Xiamen HDG Telecom Equipments is a Directional Coupler with Frequency 670 MHz to 2.7 GHz, Coupling 6 to 30 dB, Directivity 20 dB, Average Power 500 W, Insertion Loss 0.1 to 1.5 dB. Tags: Module with Connectors. More details for DC-0727-DINF-XX can be seen below.