The KB80120S51A from KeyLink Microwave is a RF Amplifier with Frequency 8 to 12 GHz, Power Gain 42 dB, Gain Flatness 2 dB (Power Gain Flatness), Input Return Loss -10 dB, Harmonics -15 dBc. Tags: Benchtop / Rackmount, Power Amplifier. More details for KB80120S51A can be seen below.