The QDA-9000-10000-47.5-0.5 from Qualwave is a RF Variable Attenuator with Frequency 9 to 10 GHz, Attenuation Range 0 to 47.5 dB, Attenuation Accuracy 0 to 1.425 dB (3 %), Power 0.5 W, Insertion Loss 5.5 dB. Tags: Module with Connectors, Digital. More details for QDA-9000-10000-47.5-0.5 can be seen below.