The KB0520S53A from KeyLink Microwave is a RF Amplifier with Frequency 500 MHz to 2 GHz, Power Gain 53 dB, Gain Flatness 3 dB (Power Gain Flatness), Output Power 53.01 dBm, Output Power 199.99 W. Tags: Benchtop / Rackmount, Power Amplifier. More details for KB0520S53A can be seen below.