The 12DY-20D70 from Clear Microwave, Inc is a Power Divider with Frequency 20.2 to 21.2 GHz, Insertion Loss 2.1 to 2.6 dB, Isolation 16 to 18 dB, Input Power 8 W, Amplitude Balance 0.3 dB. Tags: Module with Connectors, Through Hole. More details for 12DY-20D70 can be seen below.