The ZX76-15R5-SP from Mini Circuits is a RF Variable Attenuator with Frequency 0 to 4000 MHz, Attenuation Range 15.5 dB, Attenuation Step 0.5 dB, Power 158 W, Switching Time 1 µSec. Tags: Module with Connectors, Digital, Programmable. More details for ZX76-15R5-SP can be seen below.