The BZ-02000400-45271521-072020 from B&Z Technology is a RF Amplifier with Frequency 2 to 4 GHz, Gain 15 to 17 dB, Gain Flatness ±0.7 dB, Noise Figure 4 to 4.5 dB, Output Power 27 to 28 dBm. Tags: Power Amplifier. More details for BZ-02000400-45271521-072020 can be seen below.