The MDC040080R30B4 from Meuro Microwave is a RF Variable Attenuator with Frequency 4 to 8 GHz, Attenuation Range 0 to 30 dB, Attenuation Accuracy 0.5 dB, Power 0.5 W, Insertion Loss 3.4 dB. Tags: Module with Connectors, Drop In, Digital. More details for MDC040080R30B4 can be seen below.