The AFS4-02000400-20-25P-4 from Narda-MITEQ is a RF Amplifier with Frequency 2 to 4 GHz, Gain 36 dB, Gain Flatness ± 1.5 dB, Noise Figure 2 dB, P1dB 25 dBm. Tags: Power Amplifier, Low Noise Amplifier. More details for AFS4-02000400-20-25P-4 can be seen below.