The ZX76-31R5A-PP+ from Mini Circuits is a RF Variable Attenuator with Frequency DC to 2.4 GHz, Attenuation Range 31.5 dB, Attenuation Step 0.5 dB, Power 0.25 W, P1dB 24 dBm. Tags: Module with Connectors, Programmable, Digital, Computer Controlled. More details for ZX76-31R5A-PP+ can be seen below.