The 4058 from Ophir RF is a RF Amplifier with Frequency 2.4 to 2.5 GHz, Gain 48 dB, Gain Flatness ± 0.75 dB max, Output Power 46.021 to 46.99 dBm, Output Power 40 to 50 W. Tags: Benchtop / Rackmount, Power Amplifier. More details for 4058 can be seen below.