The CA10-20/D from MCLI is a RF Variable Attenuator with Frequency 8 to 12.4 GHz, Attenuation Range 20 dB, Attenuation Accuracy 1 dB, Power 5 W, Peak Power 64.77 dBm. Tags: Module with Connectors, Continuously Variable, Rotary. More details for CA10-20/D can be seen below.