The MUI40-33S-12B from Polytron Devices is a AC to DC Converter with AC Input Voltage 85 to 264 V, AC Input Current 550 to 1050 mA, DC Input Voltage 120 to 370 V, DC Output Voltage -12 V, 3.3 V, 12 V, DC Output Current 0.5 to 6 A. Tags: Chassis Mount. More details for MUI40-33S-12B can be seen below.