The BZ-00504000-480518-252727 from B&Z Technology is a RF Amplifier with Frequency 500 MHz to 40 GHz, Gain 18 to 22 dB, Gain Flatness ±2.5 dB, Noise Figure 4.5 to 4.8 dB, Output Power 5 to 8 dBm. More details for BZ-00504000-480518-252727 can be seen below.