The OPD5-500-4-S from Beijing Ocean Microwave Corporation is a Power Divider with Frequency 5 to 500 MHz, Insertion Loss 0.4 to 1.5 dB, Isolation 20 to 34 dB, Input Power 1 W, Amplitude Balance 0.4 dB. Tags: Module with Connectors. More details for OPD5-500-4-S can be seen below.