The 4132A from Inmet by Spectrum Control is a Power Divider with Frequency 2.3 to 4.4 GHz, Insertion Loss 0.4 dB, Isolation 20 dB, Input Power 2 W, Amplitude Balance 0.2 dB. Tags: Module with Connectors, Wilkinson Power Divider. More details for 4132A can be seen below.