The BZ-20202120-201040-102020 from B&Z Technology is a RF Amplifier with Frequency 20.2 to 21.2 GHz, Gain 40 to 42 dB, Gain Flatness ±1 dB, Noise Figure 1.4 to 2 dB, Output Power 10 to 12 dBm. Tags: Low Noise Amplifier. More details for BZ-20202120-201040-102020 can be seen below.