The ?D-058-8 from ET Industries is a Power Divider with Frequency 0.5 to 8 GHz, Insertion Loss 6 dB, Isolation 16 to 22 dB, Input Power 20 W, Amplitude Balance ± 0.5 dB. Tags: Module with Connectors, Stripline Power Divider. More details for ?D-058-8 can be seen below.