The BVA2140B from BeRex, Inc. is a RF Amplifier with Frequency 700 MHz to 4 GHz, Gain 30.4 dB, Noise Figure 2.7 dB, Output Power 25.6 dBm, Output Power 0.37 W. Tags: Surface Mount, Power Amplifier, Digital Variable Gain Amplifier, Gain Block. More details for BVA2140B can be seen below.