The G4674-20 from ARRA Inc. is a RF Variable Attenuator with Frequency 3.7 to 4.2 GHz, Attenuation Range 20 dB, Attenuation Accuracy ±0.75 dB, Power 10 W, Peak Power 66.99 dBm. Tags: Module with Connectors, Rotary, Continuously Variable. More details for G4674-20 can be seen below.