The QDA-20-6000-31.5-0.5 from Qualwave is a RF Variable Attenuator with Frequency 0.02 to 6 GHz, Attenuation Range 0 to 31.5 dB, Attenuation Accuracy ±0.5 dB, Power 0.31 W, Insertion Loss 4 dB. Tags: Module with Connectors, Digital. More details for QDA-20-6000-31.5-0.5 can be seen below.