The QSA06A from Qualwave is a RF Variable Attenuator with Frequency DC to 6 GHz, Attenuation Range 0 to 90 dB, Attenuation Accuracy 0.2 to 0.8 dB, Power 2 to 10 W, Peak Power 0.1 kW. Tags: Module with Connectors, Rotary. More details for QSA06A can be seen below.