The PE7439N-60 from Pasternack Enterprises Inc is a RF Variable Attenuator with Frequency DC to 6000 MHz, Attenuation Range 0 to 60 dB, Attenuation Accuracy ±0.5 dB, Power 2 W, Peak Power 100 W. Tags: Module with Connectors, Rotary. More details for PE7439N-60 can be seen below.