The QB-910 from Spectrum Control is a RF Amplifier with Frequency 2 to 6 GHz, Gain 27 dB, Gain Flatness ±2 to 3 dB, Output Power 25 to 27 dBm, Output Power 0.316 to 0.501 W. Tags: Module with Connectors, Power Amplifier. More details for QB-910 can be seen below.