The BZCR-04000800-15K0030-152020 from B&Z Technology is a RF Amplifier with Frequency 4 to 8 GHz, Gain 25 to 27 dB, Gain Flatness ±1.5 dB, Noise Figure 0.2 to 0.22 dB, Output Power 2 dBm. Tags: Cryogenic Amplifier, Low Noise Amplifier. More details for BZCR-04000800-15K0030-152020 can be seen below.