The BZT-04000800-121330-122020 from B&Z Technology is a RF Amplifier with Frequency 4 to 8 GHz, Gain 30 to 32 dB, Gain Flatness ±1.2 dB, Noise Figure 1 to 1.2 dB, Output Power 13 to 15 dBm. More details for BZT-04000800-121330-122020 can be seen below.