The MNA-4A-D+ from Mini Circuits is a RF Amplifier with Frequency 500 MHz to 4.5 GHz, Gain 17 dB, Noise Figure 4.5 dB, Output Power -3 to 16.8 dBm, Output Power 0.001 to 0.05 W. Tags: Power Amplifier, Buffer Amplifier. More details for MNA-4A-D+ can be seen below.