The QDA-1000-40000-31-1 from Qualwave is a RF Variable Attenuator with Frequency 1 to 40 GHz, Attenuation Range 0 to 31 dB, Attenuation Accuracy ±1.55 dB, Power 0.1 W, Insertion Loss 8 dB. Tags: Module with Connectors, Digital. More details for QDA-1000-40000-31-1 can be seen below.