The DBPD0402000400C from Qotana is a Power Divider with Frequency 2 to 4 GHz, Insertion Loss 0.45 to 0.6 dB, Isolation 18 to 20 dB, Input Power 1 to 30 W, Amplitude Balance 0.1 to 0.25 dB. Tags: Module with Connectors. More details for DBPD0402000400C can be seen below.