The FMAT7431-5 from Fairview Microwave is a RF Variable Attenuator with Frequency 2.5 to 4 GHz, Attenuation Range 0 to 5 dB, Power 5 W, Peak Power 3 kW, Insertion Loss 0.5 dB. Tags: Module with Connectors, Rotary, Continuously Variable. More details for FMAT7431-5 can be seen below.