The 9684-30FS from ARRA Inc. is a RF Variable Attenuator with Frequency 12.4 to 18 GHz, Attenuation Range 30 dB, Attenuation Accuracy ±1 dB, Power 10 W, Peak Power 66.99 dBm. Tags: Module with Connectors, Rotary, Continuously Variable. More details for 9684-30FS can be seen below.