The EMM5077VU from Sumitomo Electric Device Innovations is a RF Amplifier with Frequency 3.4 to 5 GHz, Gain 26 dB, Power Gain 21 to 25 dB, Output Power 27 to 31 dBm, Output Power 0.5 to 1.26 W. Tags: Surface Mount, Ceramic, Hermetic, Power Amplifier. More details for EMM5077VU can be seen below.