The MA-550/XB-3.0 from Microwave Devices Inc. is a Fixed Attenuator with Frequency DC to 3 GHz, Attenuation 1 to 60 dB, Power 50 W, Peak Power 2000 W, Attenuation Accuracy Greater of: ±0.5 dB or 3%. Tags: Module with Connectors. More details for MA-550/XB-3.0 can be seen below.