The BZ-03400420-0550827-101315 from B&Z Technology is a RF Amplifier with Frequency 3.4 to 4.2 GHz, Gain 27 to 29 dB, Gain Flatness ±1 dB, Noise Figure 0.4 to 0.55 dB, Output Power 8 to 12 dBm. Tags: Power Amplifier. More details for BZ-03400420-0550827-101315 can be seen below.