The COM04C4P-2589-S5S5 from ETL Systems is a Power Divider with Frequency 2 to 4.2 GHz, Insertion Loss 1.2 to 2 dB, Isolation 20 dB, Input Power 5 W, Amplitude Balance 0.15 dB. Tags: Module with Connectors. More details for COM04C4P-2589-S5S5 can be seen below.