The QPN-2728 from QuinStar Technology Inc is a RF Amplifier with Frequency 26 to 86 GHz, Gain 25 to 28 dB, Gain Flatness 1.75 to 2.2 dB, Output Power 26 to 27 dBm, Output Power 0.4 to 0.5 W. Tags: Power Amplifier. More details for QPN-2728 can be seen below.