The PE7443-99 from Pasternack Enterprises Inc is a RF Variable Attenuator with Frequency DC to 8000 MHz, Attenuation Range 0 to 99 dB, Attenuation Accuracy ±2 dB, Power 2 W, Peak Power 200 W. Tags: Module with Connectors, Rotary. More details for PE7443-99 can be seen below.