The AF085C1-40 from Narda-ATM is a RF Variable Attenuator with Frequency 3.6 to 4.3 GHz, Attenuation Range 40 dB, Power 7 W, Peak Power 64.77 dBm, Insertion Loss 0.5 dB. Tags: Module with Connectors, Continuously Variable, Rotary. More details for AF085C1-40 can be seen below.