The ERA-4XSM+ from Mini Circuits is a RF Amplifier with Frequency DC to 4 GHz, Gain 13.5 dB, Noise Figure 4.2 dB, Output Power 17 dBm, Output Power 0.05 W. Tags: Surface Mount, Power Amplifier, CATV Amplifier. More details for ERA-4XSM+ can be seen below.