The BM10046 from Bracke Manufacturing is a RF Variable Attenuator with Frequency DC to 500 MHz, Attenuation Range 0 to 42 dB, Attenuation Step 1, 2, 3, 6, 10, 20 dB, Attenuation Accuracy ±3.5 dB, Power 10 W. Tags: Module with Connectors, Toggle. More details for BM10046 can be seen below.