The FMAT7439-60 from Fairview Microwave is a RF Variable Attenuator with Frequency DC to 6 GHz, Attenuation Range 0 to 60 dB, Attenuation Step 1 dB, Attenuation Accuracy ±0.5 dB, Power 2 W. Tags: Module with Connectors, Rotary. More details for FMAT7439-60 can be seen below.