The BM10087 from Bracke Manufacturing is a RF Variable Attenuator with Frequency DC to 2 GHz, Attenuation Range 0 to 30 dB, Attenuation Accuracy ±0.25 to ±0.4 dB, Power 2 W, Peak Power 60 dBm. Tags: Benchtop, Rotary. More details for BM10087 can be seen below.