The PSA-5451+ from Mini Circuits is a RF Amplifier with Frequency 50 MHz to 4 GHz, Gain 14 dB, Noise Figure 1 dB, Output Power 43 to 16.2 dBm, Output Power 19.95 to 0.04 W. Tags: Surface Mount, Low Noise Amplifier. More details for PSA-5451+ can be seen below.