The BM10091 from Bracke Manufacturing is a RF Variable Attenuator with Frequency DC to 3 GHz, Attenuation Range 0 to 10 dB, Attenuation Accuracy ±0.25 to ±0.5 dB, Power 2 W, Peak Power 60 dBm. Tags: Benchtop, Rotary. More details for BM10091 can be seen below.