The MDC000180R30B4 from Meuro Microwave is a RF Variable Attenuator with Frequency DC to 18 GHz, Attenuation Range 0 to 30 dB, Attenuation Accuracy 1.5 dB, Power 0.5 W, Insertion Loss 4.5 dB. Tags: Module with Connectors, Drop In, Digital. More details for MDC000180R30B4 can be seen below.