The ?D-518-2 from ET Industries is a Power Divider with Frequency 5 to 18 GHz, Insertion Loss 0.80 dB, Isolation 20 dB, Input Power 20 W, Amplitude Balance ± 0.2 dB. Tags: Module with Connectors, Stripline Power Divider. More details for ?D-518-2 can be seen below.