The SHF F840 A from SHF Communication Technologies is a RF Amplifier with Frequency 70 kHz to 55 GHz, Gain 10 to 11 dB, P1dB 0.01 W, Supply Voltage 8 to 12 V. Tags: Module with Connectors, Driver Amplifier, Differential Amplifier. More details for SHF F840 A can be seen below.