The BZR-02000400-061047-152020 from B&Z Technology is a RF Amplifier with Frequency 2 to 4 GHz, Gain 47 to 48 dB, Gain Flatness ±1.5 dB, Noise Figure 0.5 to 0.6 dB, Output Power 10 to 13 dBm. More details for BZR-02000400-061047-152020 can be seen below.