The 5955-60 from ARRA Inc. is a RF Variable Attenuator with Frequency 4 to 8 GHz, Attenuation Range 60 dB, Attenuation Accuracy ±1.25 dB, Power 1 W, Insertion Loss 1.5 to 6 dB. Tags: Module with Connectors, Rotary, Continuously Variable. More details for 5955-60 can be seen below.