The BZ-03400420-101535-052020 from B&Z Technology is a RF Amplifier with Frequency 3.4 to 4.2 GHz, Gain 70 to 72 dB, Gain Flatness ±1 dB, Noise Figure 0.42 to 0.43 dB, Output Power 10 to 12 dBm. Tags: Low Noise Amplifier. More details for BZ-03400420-101535-052020 can be seen below.