The BZT-04500550-352823-102020 from B&Z Technology is a RF Amplifier with Frequency 4.5 to 5.5 GHz, Gain 28 to 33 dB, Gain Flatness ±1 dB, Noise Figure 3.5 dB, Output Power 23 to 25 dBm. Tags: Power Amplifier, Power Amplifier. More details for BZT-04500550-352823-102020 can be seen below.