The TVA-4W-422A+ from Mini Circuits is a RF Amplifier with Frequency 500 MHz to 4.2 GHz, Gain 25 dB, Gain Flatness ±1.0 dB, Noise Figure 10 dB, Output Power 18.2 to 34 dBm. Tags: Benchtop / Rackmount, Power Amplifier. More details for TVA-4W-422A+ can be seen below.