The B6684-50 from ARRA Inc. is a RF Variable Attenuator with Frequency 10.9 to 12.2 GHz, Attenuation Range 50 dB, Power 10 W, Peak Power 66.99 dBm, Insertion Loss 2 dB. Tags: Module with Connectors, Rotary, Continuously Variable. More details for B6684-50 can be seen below.