The 4617-20X from ARRA Inc. is a RF Variable Attenuator with Frequency 2 to 4 GHz, Attenuation Range 20 dB, Power 50 W, Peak Power 69.03 dBm, Insertion Loss 0.5 dB. Tags: Module with Connectors, Rotary, Continuously Variable. More details for 4617-20X can be seen below.