The TLLA2G4.8G-28-00-Cryo from Talent Microwave Inc is a RF Amplifier with Frequency 2 to 4.8 GHz, Gain 25 dB, Gain Flatness ±0.75 dB, Input Return Loss -10 dB, Supply Voltage 0.6 to 1.4 V. Tags: Benchtop / Rackmount, Low Noise Amplifier, Cryogenic Amplifier. More details for TLLA2G4.8G-28-00-Cryo can be seen below.