The ASL4055C7 GaN from Aelius Semiconductors is a RF Amplifier with Frequency 8.5 to 12.5 GHz, Gain 23 to 28 dB, Power Gain 23 dB, Small Signal Gain 28 dB, Saturated Power 43 dBm. Tags: Surface Mount, Power Amplifier. More details for ASL4055C7 GaN can be seen below.