The MM-BPD-001005-04 from Mountain Microwave Technology is a Power Divider with Frequency 0.1 to 0.5 GHz, Insertion Loss 1.2 dB, Isolation 20 dB, Input Power 50 W, Amplitude Balance 0.3 dB. Tags: Module with Connectors, Multi-Octave Power Divider. More details for MM-BPD-001005-04 can be seen below.