The MM-BPD-008040-04 from Mountain Microwave Technology is a Power Divider with Frequency 0.8 to 4 GHz, Insertion Loss 1.8 dB, Isolation 20 dB, Input Power 30 W, Amplitude Balance 0.5 dB. Tags: Module with Connectors, Multi-Octave Power Divider. More details for MM-BPD-008040-04 can be seen below.