The 4328B-2 from Narda-MITEQ is a Power Divider with Frequency 10 to 33 GHz, Insertion Loss 1.5 dB, Isolation 15 dB, Input Power 1 to 30 W, Amplitude Balance 0.5 dB. Tags: Module with Connectors, Reactive Power Divider, Multi-Octave Power Divider. More details for 4328B-2 can be seen below.