The ADM-8558CH from Marki Microwave is a RF Amplifier with Frequency DC to 20 GHz, Small Signal Gain 14 to 16 dB, Noise Figure 1.8 to 3.8 dB, P1dB 14 dBm, P1dB 0.025 W. Tags: Surface Mount, Low Noise Amplifier. More details for ADM-8558CH can be seen below.