The 4313C-4 from Narda-MITEQ is a Power Divider with Frequency 2 to 4 GHz, Insertion Loss 0.6 dB, Isolation 20 dB, Input Power 1 to 30 W, Amplitude Balance 0.3 dB. Tags: Module with Connectors, Reactive Power Divider, Octave Power Divider. More details for 4313C-4 can be seen below.