The MDC029034R30B9 from Meuro Microwave is a RF Variable Attenuator with Frequency 2.9 to 3.4 GHz, Attenuation Range 30 dB, Power 0.5 W, Insertion Loss 7 dB, Supply Voltage -5 to 5 V. Tags: Module with Connectors, Drop In, Digital. More details for MDC029034R30B9 can be seen below.