The BZCR-04001200-30K0327-172020 from B&Z Technology is a RF Amplifier with Frequency 4 to 12 GHz, Gain 27 dB, Gain Flatness ±1.7 dB, Noise Figure 0.4 dB, Output Power 3 dBm. Tags: Cryogenic Amplifier, Low Noise Amplifier. More details for BZCR-04001200-30K0327-172020 can be seen below.