The BZRLA-04000800-121343-152020 from B&Z Technology is a RF Amplifier with Frequency 4 to 8 GHz, Gain 43 to 45 dB, Gain Flatness ±1.5 dB, Noise Figure 1 to 1.2 dB, Output Power 13 to 15 dBm. More details for BZRLA-04000800-121343-152020 can be seen below.