The AFS4-04400500-25-23P-4 from Narda-MITEQ is a RF Amplifier with Frequency 4.4 to 5 GHz, Gain 20 dB, Gain Flatness ± 0.75 dB, Noise Figure 2.5 dB, P1dB 23 dBm. Tags: Power Amplifier, Low Noise Amplifier. More details for AFS4-04400500-25-23P-4 can be seen below.