The OPD0.002-20-4-S from Beijing Ocean Microwave Corporation is a Power Divider with Frequency 0.002 to 20 MHz, Insertion Loss 0.3 to 1 dB, Isolation 20 to 33 dB, Input Power 1 W, Amplitude Balance 0.25 dB. Tags: Module with Connectors. More details for OPD0.002-20-4-S can be seen below.