The PLH4-31-1K from MCLI is a Power Divider with Frequency 10 to 100 MHz, Insertion Loss 0.4 dB, Isolation 20 dB, Input Power 1000 W, Amplitude Balance 0.2 dB. Tags: Module with Connectors, Lumped Element Power Divider. More details for PLH4-31-1K can be seen below.