The PS4-19/NF from MCLI is a Power Divider with Frequency 3650 to 4250 MHz, Insertion Loss 0.8 dB, Isolation 19 dB, Input Power 30 W, Amplitude Balance 0.3 dB. Tags: Module with Connectors, Stripline Power Divider. More details for PS4-19/NF can be seen below.