The G4684-30 from ARRA Inc. is a RF Variable Attenuator with Frequency 3.7 to 4.2 GHz, Attenuation Range 30 dB, Power 10 W, Peak Power 66.99 dBm, Insertion Loss 0.75 dB. Tags: Module with Connectors, Rotary, Continuously Variable. More details for G4684-30 can be seen below.