The KN2545M53A from KeyLink Microwave is a RF Amplifier with Frequency 2.52 to 2.57 GHz, Gain 53 dB, Output Power Limit 53.01 dBm, Output Power Limit 199.99 W, Supply Voltage 28 V. Tags: Power Amplifier. More details for KN2545M53A can be seen below.