The 1020T879-001 from Unique Broadband Systems is a Power Divider with Frequency 0.5 to 3 GHz, Insertion Loss 1.25 to 1.65 dB, Isolation 17 to 20 dB, Input Power 20 W, Amplitude Balance 0.3 dB. Tags: Module with Connectors, Wilkinson Power Divider. More details for 1020T879-001 can be seen below.