The PD0002-S4 from Inmet by Spectrum Control is a Power Divider with Frequency 800 to 2500 MHz, Insertion Loss 0.7 dB, Isolation 30 dB, Input Power 10 W, Phase Balance 4 Degrees. Tags: Module with Connectors, Wilkinson Power Divider. More details for PD0002-S4 can be seen below.