The BM10072 from Bracke Manufacturing is a RF Variable Attenuator with Frequency DC to 6 GHz, Attenuation Range 0 to 60 dB, Attenuation Accuracy ±0.5 to ±0.8 dB, Power 2 W, Insertion Loss 1 dB. Tags: Benchtop, Rotary. More details for BM10072 can be seen below.