The 4316-4 from Narda-MITEQ is a Power Divider with Frequency 12 to 18 GHz, Insertion Loss 1.5 dB, Isolation 18 dB, Input Power 1 to 30 W, Amplitude Balance 0.5 dB. Tags: Module with Connectors, Reactive Power Divider, Octave Power Divider. More details for 4316-4 can be seen below.