The ETPA9K400M-200 from Etrontimes Technology is a RF Amplifier with Frequency 9 kHz to 400 MHz, Gain 56 dB, Gain Flatness ±3 dB, P1dB 50 dBm, P1dB 100 W. Tags: Benchtop / Rackmount, Power Amplifier. More details for ETPA9K400M-200 can be seen below.