The D-1860-4 from ET Industries is a Power Divider with Frequency 18 to 60 GHz, Insertion Loss 4.0 dB, Isolation 17 dB, Input Power 10 W, Amplitude Balance ± 1.2 dB. Tags: Module with Connectors, Stripline Power Divider. More details for D-1860-4 can be seen below.