The RP4-04-452/13S from Pulsar Microwave is a Power Divider with Frequency DC to 18 GHz, Insertion Loss 2.5 dB, Input Power 0.5 W, Amplitude Balance 0.5 dB, Phase Balance 6 Degree. Tags: Module with Connectors, Resistive Power Divider. More details for RP4-04-452/13S can be seen below.