The ERZ-HPA-0440-0500-40 from ERZIA is a RF Amplifier with Frequency 4.4 to 5 GHz, Gain 36.5 to 39.6 dB, Output Power 40 to 42 dBm, Output Power 10 to 15.85 W, Saturated Power 40 to 42 dBm. Tags: Power Amplifier. More details for ERZ-HPA-0440-0500-40 can be seen below.