The AT10018A-30-U from Amtery is a RF Variable Attenuator with Frequency 15 MHz to 18 GHz, Attenuation Range 31.5 dB, Attenuation Accuracy ±0.08 to ±1 dB, Power 27 dBm, IIP3 48 dBm. Tags: Module with Connectors, USB Controlled, Programmable. More details for AT10018A-30-U can be seen below.