The D3-EP-738FE from Microlab is a Power Divider with Frequency 694 to 3800 MHz, Insertion Loss 0.6 dB, Input Power 300 W, PIM -155 dBc, Operating Temperature -35 to 65 Degree C. Tags: Module with Connectors, Reactive Power Divider. More details for D3-EP-738FE can be seen below.