The 1020T877-001 from Unique Broadband Systems is a Power Divider with Frequency 0.5 to 3 GHz, Insertion Loss 1.3 dB, Isolation 13 dB, Input Power 20 W, Amplitude Balance 0.5 dB. Tags: Module with Connectors, Wilkinson Power Divider. More details for 1020T877-001 can be seen below.