The CBPU8043837R from Cernex Inc is a RF Amplifier with Frequency 800 MHz to 4.2 GHz, Gain 38 dB, Gain Flatness ±1.5 dB, Noise Figure 10 dB, Output Power 37.5 dBm. Tags: Benchtop / Rackmount, Power Amplifier, Driver Amplifier. More details for CBPU8043837R can be seen below.