The ZX76-31-SP from Mini Circuits is a RF Variable Attenuator with Frequency 0 to 2400 MHz, Attenuation Range 31 dB, Attenuation Step 1 dB, Power 158 W, Switching Time 1 µSec. Tags: Module with Connectors, Programmable, Digital. More details for ZX76-31-SP can be seen below.