The BM10077 from Bracke Manufacturing is a RF Variable Attenuator with Frequency DC to 6 GHz, Attenuation Range 0 to 1 dB, Attenuation Accuracy ±0.3 dB, Power 2 W, Insertion Loss 1 dB. Tags: Benchtop, Rotary. More details for BM10077 can be seen below.