The 6617-20 from ARRA Inc. is a RF Variable Attenuator with Frequency 8 to 12.4 GHz, Attenuation Range 20 dB, Attenuation Accuracy ±1.5 dB, Power 20 W, Peak Power 69.03 dBm. Tags: Module with Connectors, Rotary, Continuously Variable. More details for 6617-20 can be seen below.