The DDR-480B-48 from Mean Well is a DC to DC Converter with Input Voltage 16.8 to 33.6 V, Output Voltage 1 48 V, Output Current 1 10000 mA, Output Power 480000 mW, Operating Temperature -40 to 80 Degree C. Tags: Buck/Step down. More details for DDR-480B-48 can be seen below.