The PSA-545+ from Mini Circuits is a RF Amplifier with Frequency 50 MHz to 4 GHz, Gain 14.9 dB, Noise Figure 1 dB, Output Power 52 to 20.2 dBm, Output Power 158.49 to 0.1 W. Tags: Surface Mount, Low Noise Amplifier. More details for PSA-545+ can be seen below.