The DC-2124-0735 from ITS Electronics is a Low Noise Block with RF/Input Frequency 20.70 to 22.20 GHz / 22.20 to 23.70 GHz, Output Frequency 950 MHz to 2.45 GHz, Output Power 10 dBm, P1dB 7 to 10 dBm, Gain 35 dB. More details for DC-2124-0735 can be seen below.