The D2-76FN from Microlab is a Power Divider with Frequency 2.7 - 4.2 / 4.2 - 5.925 GHz, Insertion Loss 0.8 dB, Isolation 18 dB, Input Power 50 W, Amplitude Balance 0.3 dB. Tags: Module with Connectors, Wilkinson Power Divider. More details for D2-76FN can be seen below.