The MDC100105R31B6 from Meuro Microwave is a RF Variable Attenuator with Frequency 10 to 10.5 GHz, Attenuation Range 31.5 dB, Power 1 W, Insertion Loss 5 dB, Supply Voltage -5 to 5 V. Tags: Module with Connectors, Drop In, Digital. More details for MDC100105R31B6 can be seen below.