The RFDAT0418G8B from RF-Lambda is a RF Variable Attenuator with Frequency 4 to 18 GHz, Attenuation Range 64 dB, Attenuation Step 0.25 dB, Attenuation Accuracy 1.0 dB, Power 1 W. Tags: Module with Connectors, Programmable, Digital, Computer Controlled. More details for RFDAT0418G8B can be seen below.