The 9684-305 from ARRA Inc. is a RF Variable Attenuator with Frequency 12.4 to 18 GHz, Attenuation Range 30 dB, Power 10 W, Peak Power 66.99 dBm, Insertion Loss 0.5 dB. Tags: Module with Connectors, Continuously Variable, Rotary. More details for 9684-305 can be seen below.