The 6684-20G from ARRA Inc. is a RF Variable Attenuator with Frequency 7.9 to 8.4 GHz, Attenuation Range 20 dB, Power 10 W, Peak Power 66.99 dBm, Insertion Loss 0.25 dB. Tags: Module with Connectors, Rotary, Continuously Variable. More details for 6684-20G can be seen below.