The QDA-0-40000-11-1 from Qualwave is a RF Variable Attenuator with Frequency DC to 40 GHz, Attenuation Range 0 to 11 dB, Attenuation Accuracy ±0.5 to ±1.2 dB, Power 1 W, Peak Power 0.05 kW. Tags: Module with Connectors, Digital. More details for QDA-0-40000-11-1 can be seen below.