The DBDA0802800570A from Qotana is a RF Variable Attenuator with Frequency 2.8 to 5.7 GHz, Attenuation Range 60 dB, Attenuation Accuracy 0.1 dB, Power 0.2 to 1 W, Insertion Loss 3.5 dB. Tags: Module with Connectors, Digital. More details for DBDA0802800570A can be seen below.